What a lovely collection Ongarine.

Here are pics of my one casket set that is incomplete. I hope someone will have the complete set and be able to tell me about it. It is a bayonet style and someone has fashioned the copper barrel so it can be used with no aperture. Present are #1, #3, #4BIS? #5, & #7. #2 and #6 obviously with the original barrel and aperture where ever it has gone. Does anyone know what this is?