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Mk2 grenade manufacturers' markings?


Garandomatic

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Garandomatic

Got my first pineapple today and tried to look up the maker. There was a site that listed that information that had been posted here, but the site has since been taken down... Anybody know of a source for that information? Mine is simply marked "C"...

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  • 4 years later...

 

 

Here's some data I have acquired over the years.  Sorry for the length of this info but I did know how else to do it.  Hope this may help.

 

 

 

American

Color or Marking
 Meaning
 Notes

 
Olive green body
 Normally used for operational purposes (camoflage).  Can be found on HE, 
Antitank, Smoke or any other types.
 Normally with yellow markings for HE
 
Grey body
 In early grenades (WWI) indicated a filled grenade, thereafter indicates 
a chemical grenade, smoke, gas, phosphorous, incendiary
 Old markings
 
Light Red body
 Incendiary grenade
 New marking
 
Black body
 Offensive grenade, early training grenades, may indicate armour defeating 
ammunition
 Offensive grenades have yellow label or yellow markings
 
Yellow
 HE filled grenade, Fragmentation, Offensive, antitank

Also used for markings and bands indicating an HE filling
 Old marking
 
Blue body (changed from RED, as used by Germany)
 Practice grenade
 May have white markings
 
White or unpainted
 Illumination grenade
 May have black markings
 
Bronze, gold, or brass
 Indicates completely inert ammunition
 May have black markings
 
Brown
 Indicates a low explosive filler
 Normally a brown band around the item
 
Violet
 Indicates an incapacitating agent filler,
 Markings and bands
 
Dark Green
 Indicates a toxic chemical agent filler
 Normally markings and band
 
Dark Red
 Identifies Riot control munition
 Normally used for markings and bands
 
Light green body
 Colored smoke grenade, white phosphorous grenade, HC smoke grenade
   
Black tip on lower outside of safety lever:
 Indicates a safety lever that has been recovered from a grenade range and 
reused.
   

 

Lot numbers will be found both on the fuse mechanism, normally painted 
and stamped into the top of the safety lever, and on the body, normally 
painted on the side.

Lot Numbers Defined

Old

Lot # ABC-8-124

ABC
 8
 124
 
Manufacturers ID Symbol
 Interfix Number
 Serial Number

Aerial Machine & Tool Co., Long Island, NY
International Munitions Co,, Stamford, CT
Westinghouse Manufacturing Co.
 

New

Lot # AMC 75 D 018 124 B

AMC
 75
 D
 018
 124
 B
 
Manufacturers ID Symbol
 Year of Manufacture
 Single digit for Month of Manufacture
 Lot interfix number
 Lot Sequence number
 Ammunition Lot suffix
 

 

American Manufacturers

Marking
 Grenade
 Manufacturer
 Notes

 
A (body) usually w/M6A4C fuze (TNT)
 Mk IIA1

AA 
 MkII
 American Armament Corp
 6 E 45th St, New York City
     
AF
 Mk IIA1
 American Fireworks Co. New Jersey
 (Antonelli Fireworks Co.)
 
AMR
 M227 fuze
 Amram Mfg. Corp
 Vineland Texas
 
AR 
 Mk. II
 American Radiator Co. Buffalo, NY

     
BII
 M204/M206 fuzes
 Bradar Industries Inc. 
 New Hyde Park, NY

B-B
 Burnham Boiler
    Ohio
 
BWD
 M201A1 fuze
 Brunswick Corp Defense Products, 
 Lincoln NE 

BWG
 M213 fuzes
 Brunswick Corp Tech Products 
 Sugar Grove,
 
C
 Mk. II body
 Crane
 Burns City
  
EK    Eastman Kodak

F (in a diamond) 
  Mk1 body (1917) 
  
FDL
 M201A1 fuzes
 Federal Labs 
 Saltzberg, PA 

FLI
 M10A2 fuze

G (early MkII body) 
 The Grabbler Manufacturing Co.
  Cleveland, Ohio
     
GOI
 M213 Fuzes
 Gerhart-Owens Industries
 Fort Worth, Texas
 
HRV
 M204 Series fuzes
 Harvelle-Kilgore Corp
 Bolivar, TN
 
IOP
 M204 and M205 series fuze mechanisms
 Iowa Ordnance Plant 
 Burlington Iowa 

JA
 M26, M67
 Joliet Army Ammo Plant 
 Joliet IL
 
K (in circle)
 M10A2 fuze
 Kilgore Mfg Co
   
L (in a diamond)
 Mk. II body
 Littlestown Foundry and Hardware
 Littlestown, Pennsylvania
 
LNX
 M213 Fuzes
 Lynx Incorporated 
 Elkton MD
 
LS (fuzes) M205A1
Lone Star Ordnance Plant

LOP
 M26 series
 Louisiana Ordnance Plant, 
 Shreveport LA 

LOW
 M26 series, Flares
 Longhorn Ordnance Works, 
 Marshall TX 

LS
 M26, M30, M33, M61, M67
 Lone Star Ordnance Plant, 
 Texarkana TX 

MA
 M26, M67
 Milan Army Ammo Plant 
 Milan, TN 

MAI
 Fuzes
 Maryland Assemblies Inc., 
 Perry FL 

MDC
 M1A1 adapters
 Dynamic Corporation of America, Massa Division, 
 Hingham, MA 

MEI
 Fuzes M228
 Martin Electronics Inc. 
 Perry FL
  
N (body)
 Mk. II (WWI vintage)
     
NC
 T2E1 and M2A1 adapters
 New Cumberland Army Depot, 
 New Cumberland PA

NFO
 M204 series fuzes

     
NYI
 M201A1 fuzes
     
OA
 M26 series
 Ordnance Associates Inc. South 
 Pasedena, CA 

OPI
 M205A2 fuze
 Ordnance Products Inc., 
 Northeast MD 

PA
 Mk. III, M26 series, M217 fuzes
 Picatinny Arsenal 
 Dover NJ 

PAL
 M206A2, M213 fuzes
 Penguin Associates Inc, 
 Parkersburg, PA
 
RFX
 M21, M30
 Richmond Foundry & Mfg. Co. Inc.
 Richmond VA

S (small letter "S" in lower segment)
 MkII
 Spacke Machine & Tool Co. Indianapolis, IN. 
     
S on its side inside an oval ("lazy S")
 Mk. IIA1 body

S (fancy Italic letter)
 MkIIA1
     
Shamrock with small C inside
 M200A1 fuze
 Continental Can Company
    
TE
 M10A3 fuze
     
UAMCO
 M200A1 fuze
 Universal Automatic Machine Co. 
 Marshall TX
  
UOD
 M1A2 adapters
 Umatilla Ordnance Depot 
 Hermiston, OR 

WE (body)
 Mk. II (WWII vintage)
 Weber Engine


Producers of the early MKII grenade bodies (1919 - 1930)

American Radiator Co., Buffalo, N.Y. (marked AR)
Casky-Dupree Co., Marietta, Ohio
Doehler Die Castings Co., Brooklyn, N.Y.
International Harvester Co., Chicago, Ill.
Miami Cycle & Manufacturing Co., Middletown, Ohio
Precision Castings Co., Syracuse, N.Y.

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Addition ( correction): black painted spoon tip on WW2 MKII grenade spoon signifies a modification was incorporated. There are a few posts and supporting references on this website. The MKII had over a dozen modifications, from fuzes, to half moon pins to washer type/material.

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  • 2 weeks later...

Thanks for the education, are the fuse maker and body maker the same? This is mine: Mid /short spoon, Fuse marked M10 PA (which I take as Picatinny) LOT 1139-8, Body marked  30 +. and a DIamond.

Tim

D1EF3FD9-6BEC-471C-A203-726465AFCFB1.jpeg

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  • 3 months later...
  • 4 weeks later...

FYI, the Homestake Mining Co. of Deadwood, SD made Mk2 bodies in WW2 hoping to get a contract from the Govt. but it did not happen. The grenade bodies are out there, marked with an H or HMC.

 

Chuck.

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