I was station on the old pro in 1980 our captain was Michael C Colley was a trip to watch them load ICBM's on the Boomers was on it in Guam and Diego Garcia

So, there are two types of brass casings. One is for the AA gun, the other for the tank gun. The AA gun casing very rare, the tank gun more common but difficult to find. The AA projectile a Holy Grail, the Tank AT projectiles still can be found.    I have both the blue ( TP-T) and black ( AP-T) projectiles. I made an “ adapter” from wood to enable the projectile to sit on the brass casings ( even tho they were seperate loaded) for display purposes.    

So, there are two types of brass casings. One is for the AA gun, the other for the tank gun. The AA gun casing very rare, the tank gun more common but difficult to find. The AA projectile a Holy Grail, the Tank AT projectiles still can be found.    I have both the blue ( TP-T) and black ( AP-T) projectiles. I made an “ adapter” from wood to enable the projectile to sit on the brass casings ( even tho they were seperate loaded) for display purposes.

Thanks everyone for the information. If it turns out to be a Sea Bee special hopefully it’s still worth the $180 I paid for it. Hopefully there will be someway to discern where it’s authentic. 

I have been following this thread. I do know this 120mm was first used as an AA cannon, ( the Stratosphere AA gun), then adapted for the M103 Heavy tank.    I started a thread long ago.    

Elastic probably for Chem-lights? 

May Eric rest in pease and his family find comfort knowing he was loved by those who knew him.

Very nice patches, I’ve sailed by and flown over Midway but never got to make a visit.    Chris

Im a retired Navy CPO. I did 20 years working on A-6s and F-14s. I was on flight decks for most of that 20 years.   The situation I described was a daily occurrence at sea.    ATC(AW) ret. 1981-2001. 

Underneath it