Mauricio & Lessa.

O EXERCITO DOS ESTADOS UNIDOS; Biblioteca Militar Volume XLIII (Used)

Ordnance Dept.

O.P.M. 8-15 AMMUNITION COMPONENT TESTS BOOSTERS; Ordnancs Proof Manual (Used)

Costley,Bill.

OBERGEFREITER JAGER BATTALION LIGHT INFANTRY DIVISION. (Used)

Costley,Bill.

OBERSCHARFUHRER 6.SS-GEBIRGS DIVISION NORD. (Used)

Longfield & Basnett.

OBSERVATIONS ON COLT'S SECOND CONTRACT NOVEMBER 2,1847; NAS no 37 (Used)

Bureau of Ordnance.

OD 6662 ORDNANCE EQUIPMENT LIST FOR CARGO SHIPS AKA (ARTIC). (Used)

Ordnance Dept.

OEC LIST OF ORDNANCE CHARTS. (Used)

The National Skeet Shooting Ass'n.

OFFICAL SKEET RULE AND HANDBOOK 1933. (Used)

Stefanski, Claus P., & Dirk Stefanski .

OFFICER SWORDS OF THE GERMAN NAVY 1806-1945.

National Board for the Promotion of Rifle Practice.

OFFICIAL BULLETINS NATIONAL TROPHY MATCHES 1962. (Used)

Engineer Regiment.

THE OFFICIAL HISTORY OF THE THREE HUNDRED AND FOURTH ENGINEER REGIMENT. (Used)

Davis, Perry, Kirkley & Cowles.

THE OFFICIAL MILITARY ATLAS OF THE CIVIL WAR. (Used)

Cooper,General S.

OFFICIAL REPORT OF THE BATTLE OF CHICKMAUGA. (Used)

Christian,G.L.

OFFICIAL REPORT OF THE HISTORY COMMITTE OF THE GRAND CAMP C.V.,DEPARTMENT OF VIRGINIA. (Used)

Christan,G.L.

OFFICIAL REPORT OF THE HISTORY COMMITTEE OF THE GRAND CAMP,C.V. DEPARTMENT OF VIRGINIA. (Used)

Christian,G.L.

OFFICIAL REPORT OF THE HISTORY COMMITTEE OF THE GRAND CAMP,C.V.'DEPARTMENT OF VIRGINIA. (Used)

OFFICIAL WORLD'S FAIR IN PICTURES; A century of Progress Exposition 1933 (Used)

Ordnance Field Service.

OFS BULLETIN NO. 1990-7 IDENTIFYING NOMENCLATURE ON CAL..50 M2 AND CAL..30 METAL AMMUNITION BOXES. (Used)

Ordnance Field Service.

OFS TECHNICAL BULLETIN 1990-7IDENTIFYING NOMENCLATURE ON CAL. .50, M2, AND CAL..30 M1 METAL AMMUNITION BOXES. (Used)

War Dept.

OFSB 3-20 AMMUNITION: SURVEILLANCE MANUAL. (Used)

Ordnance Dept.

OFSC ORDNANCE FIELD SERVICE CIRCULARS, OFSC 1, 5, 8, 9, 13, 17 AND 20. (Used)

Robert N. Converse.

OHIO FLINT TYPES. (Used)

Donald A. Hutslar.

OHIO GUNSMITHS & ALLIED TRADESMEN 1750-1950 VOLUME 2. (Used)

Donald A. Hutslar.

OHIO GUNSMITHS & ALLIED TRADESMEN 1750-1950 VOLUME 3. (Used)

Donald A. Hutslar.

OHIO GUNSMITHS & ALLIED TRADESMEN 1750-1950 VOLUME 5. (Used)

Robert S. Harper.

OHIO HANDBOOK OF THE CIVIL WAR. (Used)

James B. Whisker.

OHIO LONG RIFLES VOL. I. (Used)

James B. Whisker.

OHIO LONG RIFLES VOL. II. (Used)

THE OHIO NATIONAL GUARD AND THE OHIO VOLUNTEERS; A Complete Descriptive and Chronological Record (Used)

Hamlin,P.G.

"OLD BALD HEAD" (GENERAL R.S.EWELL). (Used)

Dan & Sebie Hutchins.

OLD COWBOY SADDLES & SPURS; Identifying the Cradtsmen who made them (Used)

Figiel,L.S.

ON DAMASCUS STEEL. (Used)

John R. Angolia.

ON THE FIELD OF HONOR VOLUMES 1 & 2; A History of the Knight's Cross Bearers (Used)

Roger Shaw.

ONE HUNDRED AND SEVENTY-FIVE BATTLES BY LAND, SEA AND AIR. (Used)

Lindsay,M.

ONE HUNDRED GREAT GUNS AN ILLUSTRATED HISTORY OF FIREARMS. (Used)

Lindsey,M.

ONE HUNDRED GREAT GUNS AN ILLUSTRATED HISTORY OF FIREARMS. (Used)

Lindsay,M.

ONE HUNDRED GREAT GUNS AN ILLUSTRATED HISTORY OF FIREARMS. (Used)

Izzard, Sebastian, ed.

ONE HUNDRED MASTERPIECES FROM THE COLLECTION OF DR. WALTER A. COMPTON, JAPANESE SWORDS, SWORD-FITTINGS AND ACCOUTREMENTS.

Ray t. Giles & Daniel L. Shuey.

ONE HUNDRES YEARS OF WINCHESTER CARTRIDGE BOXES 1856-1956. (Used)

Dept of Army.

OOD 3 SNL U-1, MAJOR ITEMS OF GROUP U (HELICOPTERS & FIXED WING AIRCRAFT). (Used)

Bureau of Ordnance Publications.

OP 1670( PART 2) AIRCRAFT SIGHT SYSTEM MARKS 1 MODS0,1,2, AND 3; Part 2 Overhaul and Parts Catalog (Used)

Bureau of Ordnance Publications.

OP 551A AA RANGE TABLE FOR 5-INCH 38-CALIBER GUN; 2,500 F.S. Initial Velocity 55.18-LB AA Common Projecticle Mark 35 (Used)

Chief of the Bureau of Naval Weapons.

OP 1219 P AMMUNITION COD CATALOG CLASS 5 SMALL ARMS, MACHINE GUN AND AIRCRAFT GUN AMMUNITION; 3d revision (Used)

Bureau of Ordnance Publication.

OP 1219 R AMMUNITION STOCK RECORDING SYSTEM GUN AMMUNITION SUMMARY CODES. (Used)

Bureau of Ordnance.

OP 1419 (PRELIMINARY) ELASTIC GAS CHECK PADS; Installation and Maintenance (Used)

Bureau of Ordnance Publication.

OP 1485 (FIRST REVISION) STRIPPABLE COATING APPLICATION AND MAINTENANCE. (Used)

Bureau of Ordnance Publication.

OP 1505 9SECOND REVISION) AVIATION ORDNANCE STOCK LIST. (Used)

Bureau of Naval Weapons Publications.

OP 1750 (FIRST REVISION) FREIGHT CAR MECHANICAL DUNNAGE SYSTEMS PIN AND RACK TYPES; Instructions for operation and Use (Used)

Bureau of Ordnance.

OP 1750 (FIRST REVISION) FREIGHT CAR UTILITY LOADERS, RACK AND PIN TYPES; Instructions for operation and Use (Used)

Bureau of Ordnance Publication.

OP 1879 INTERM RANGE TABLE FOR ROCKET LAUNCHER ASSEMBLY MK 108 AMD MODS, ROCKET12.75-INCH MK 1 MOD 0. (Used)

Bureau of Ordnance Publication.

OP 2140 AMMUNITION PALLETIZING AND CAR LOADING. (Used)

Bureau of Ordnance Publication.

OP 2170 RANGE TABLES FOR ILLUMINATING PROJECTILES 5-INCH 38-CALIBER GUN; 5-inch Illuminating Projectile Mark 44 Mod 0 and 1 Full and Reduced Charges (Used)

Bureau of Ordnance.

OP 4 ( VOLUME 2) SECOND REVISION AMMUNITION AFLOAT. (Used)

Bureau of Ordnance.

OP 551 (2ND REVISION) RANGE TABLE (SURFACE TARGETS) FOR 5-INCH 38 CALIBER GUN; 2,500 F.S. Initial Velocity 55.18 Lb. A.A. Common Projectile Mark 35 (Used)

Bureau of Ordnance (U.S. Navy).

OP NO. 4 AMMUNITION INSTRUCTIONS FOR NAVAL SERVICE. (Used)

Bureau of Ordnance (U.S. Navy).

OP NO. 4 AMMUNITION INSTRUCTIONS FOR NAVAL SERVICE. (Used)

Bureau of Ordnance .

OP NO. 599 ORDNANCE DRAFTING ROOM REGULATIONS. (Used)

Bureau of Ordnance.

OP NO.400-A (1ST) GENERAL SPECIFICATIONS FOR THE MANUFACTURE AND INSPECTION OF GUNS, GUN BARRELS, BREECH MECHANISMS AND BREECH HOUSINGS FOR THE UNITED STATES NAVY; supplement to OP No. 400 (Used)

Clifton Comly.

OPERATIONS OF THE DIVISION OF MILITARY ENGINEERING OF THE INTERNATIONAL CONGRESS OF ENGINEERS, HELD IN CHICAGO LAST AUGUST, UNDER THE AUSPICES OF THE WORLDS'S CONGRESS AUXILIARY OF THE COLUMBIAN EXPOSTION. VOLUMES 1 & 2. (Used)

War Office.

OPERATIONS, PART I- GENERAL PRINCIPLES, FIGHTING TROOPS AND THEIR CHARACTERISTICS; Military Training Pamphlet No.23 (Used)

War Office.

OPERATIONS, PART III- APPRECIATIONS,ORDERS, INTERCOMMUNITIONS AND MOVEMENTS; Military Training Pamphlet No.23 (Used)

Co. D 519th MI BN.

OPERATOR'S MANUAL BTR-50 ARMOURED CARRIER; Foreign Material Training (Used)

Armament Systems and Procedures.

OPERATOR'S MANUAL (INTERIM) ASP 9MM COMBAT CONVERSION OF S&W M39. (Used)

203d Military Intelligence Battalion.

OPERATOR'S MANUAL FOR ROMANIAN FPK SNIPER RIFLE. (Used)

11th Military Intelligence Battalion (TI) (Prov).

OPERATOR'S MANUAL FOR ROMANIAN FPK SNIPER RIFLE. (Used)

203rd Military Intelligence Bn.

OPERATORS MANUAL FOR AK-47 ASSULT RIFLE. (Used)

Heckler & Koch, Inc.

OPERATORS MANUAL FOR HK USP PISTOLS, USP 9MM X 19MM. USP CALIBER .40 S& W. (Used)

Dept of Army.

OPM 1-05, ORDNANCE PROOF MANUAL. (Used)

Ordnance Dept.

OPSR ORDNANCE PROVISION SYSTEM REQULATIONS WITH SCHEDULE OF REPORTS FOR GROUP A & B. (Used)

Barsness, John.

OPTICS FOR THE HUNTER, AN EVALUATION OF BINOCULARS, SCOPES, RANGE FINDERS, & SPOTTING SCOPES FOR USE IN THE FIELD.

Mypaxobcknn & Oeaoceeb.

OPYKNE NEXOBL. (Used)

Dept of Army.

ORD 7 SNL F-238 BINOCULAR, M7,M15A1, M16, M17A1, MK21 AND MK21A1. (Used)

Dept of Army.

ORD 9 SNL C-74 RIFLE, 75-MM M20 AND T21E12. (Used)

Dept of Army.

ORD 9 SNL C-74 RIFLE, 75-MM M20 AND T21E12. (Used)

Dept. of Army.

ORD SNL D-38 GUN,M2 & M2A1 AND MOUNT AA M2 & M2A! (Used)

Ordnance Dept.

ORD 11 SNL P-11 TOOLS AND SUPPLIES. (Used)

Ordnance Dept.

ORD 11 SNL P-4 CHARGES, PROPELLING,SEPERATE LOADING,12-IN,14-IN, AND 16-IN FOR HARBOR DEFENSE AND RAILWAY ARTILLERY. (Used)

War Dept.

ORD 11 SNL R-10 MATERIALS FOR RENOVATING AND PACKAGING OF GROUP R AMMUNITION AND MISCELLANEOUS ITEMS. (Used)

War Dept.

ORD 11 SNL S-5 PYROTECHNICS, MILITARY, ALL TYPES. (Used)

Ordnance Corps.

ORD 11 SNL S-5 PYROTECHNICS,MILITARY,ALL TYPES. (Used)

Army Service Forces.

ORD 11 SNL T-1 AMMUNITION,RIFLE,CARBINE AND AUTOMATIC GUN. (Used)

Ordnance Dept.

ORD 11 SNL T-4 MISCELLANOUS SERVICE COMPONENTS OF SMALL ARMS AMMUNITION FOR FIELD SERVICE ACCOUNT,INSTRUCTION MATERIAL, AND AMMUNITION FOR SIMULATED SMALL-ARMS FIRE. (Used)

Army Service Forces.

ORD 11 SNL T-5 PACKING MATERIALS USED BY FIELD SERVICE FOR SMALL-ARMS SERVICE AMMUNITION. (Used)

Ordnance Dept.

ORD 13 SNL B-15 ITEMS COMMON TOTWO OR MORE GROUP MATERIEL. (Used)

Dept of Army.

ORD 3 SNL A1 SECTION 2, ANTIAIRCRAFT AUTOMATIC WEAPONS (LIGHT ARTILLERY )T,P,C,ABD S. (Used)

Dept of Army.

ORD 3 SNL A1 SECTION 2, AUTOMATIC WEAPONS, MAJOR ITEMS AND MAJOR COMBINIATION LIST OF ITEMS FOR P,C,&S. (Used)

Ordnance Dept.

ORD 3 SNL B-1 MAJOR ITEMS OF GROUP B SMALL ARMS. (Used)

Ordnance Dept.

ORD 3 SNL B-1, MAJOR ITEMS OF GROUP B SMALL ARMS. (Used)

Dept of Army.

ORD 3 SNL F-1, FIRE CONTROL MAJOR ITEMS AND MAJOR COMBINATION FOSE WITH SMALL ARMS, AUTOMATIC S, MORTARS AND FIELD ARTILLERY. (Used)

Dept of Army.

ORD 3 SNL J-1, MACHINE TOOLS. (Used)

Dept.of Army.

ORD 3 SNL R-5 AMMUNITION, BLANK, FOR PACK,LIGHT AND MEDIUM FIELD,TANK AND ANTITANK ARTILLERY. (Used)

Dept of Army.

ORD 3 SNL T-3 SHELLS, SHOTGUN. (Used)

Dept of Army.

ORD 3 SNL T-4 MISCELLANEOUS SERVICE COMPONENTS OF SMALL-ARMS AMMUNITION FOR FIELD SERVICE ACCOUNT, INSTRUCTION MATERIAL AND AMMUNITION FOR SIMULATED SMALL- ARMS FIRE. (Used)

Dept of Army.

ORD 3 SNL T-5 SHIPPING AND PACKING CPNTAINERS AND MATERIAL,INCLUDING ITEMSAS BANDOLEERS, BELTS, CLIPS, LINKS AND ENDS FOR SMALL ARMS AMMUNITION. (Used)

Dept of Army.

ORD 3-SNL T-5 SHIPPING AND PACKING CONTAINERS AND MATERIALS,INCLUDING...BANDOLEERS,BELTS,CLIPS,AND ENDS, FOR SMALL ARMS AMMUNITION WITH CHANGE 1. (Used)

Chief of Ordnance.

ORD 5-1 NUMERICAL INDEX OF STOCK LIST (MANUFACTURES' PART NUMBERS AND DRAWING NUMBERS) OF ALL ITEMS. (Used)

Dept of Army.

ORD 5-3-6 PRICING GUIDE AMMUNITION. (Used)

Dept of Army.

ORD 5-3-6 PRICING GUIDE AMMUNITION. (Used)

Dept of Army.

ORD 5-3-6 PRICING GUIDE AMMUNITION. (Used)

Dept of Army.

ORD 5-3-6 PRICING GUIDE AMMUNITION. (Used)