Will uou please identify these for me - box of shell cases

[Jb1391]

I have a box of shell cases. The box is very heavy, wood with steel lining, made to hold 24 shells and has flat tripod shaped things ( primer protectors ? ) in the base. The shell cases measure exactltly 2 inches i d at the open end, are 9.75 inches long. a few pictures follow.

 

[Alan1]

3pr blanks for saluting purposes on board Navy ships and, probably, shore bases as well. No doubt TimG, et al, can give chapter and verse on manufacturers etc.
Alan1.

 

[TimG]

3Pr Mark 6 Blank
Case manufactured by RLB - ROF Birtley
No 20 Mk 2 Primer
Manufactured by EMI
Filled by CY - ROF Chorley
Case filled by RNAD Trecwn
See here for cannon - https://www.thefirearmblog.com/blog/2021/04/24/potd-falkland-islands-defence-force-saluting-guns/

TimG

 

[Jb1391]

Thanks Alan and Tim G The FIDF article very interesting too. Jb