20mm Oerlikon

[CINDERS]

Just taken this in to the fold bit of info for you the projie fuse cap has MK - 26 - 1 RM and what appears to be a small doughnut after the M, though it has been marred so cannot really tell, also the projectile body has 4 - 26 D (Denver or Dummy?) 9 - 42 (which I gather is the DOM of the projectiles body).

The base pic has a monogram but which maker is this one, I also have another 20mm prac base marked 43 NECO M21A1B1 with a steel case and steel projie marked FSP LOT 9829 - 15 9-42 with the copper driving band which was often removed from surplus ordnance after the war due to the copper shortages.
Any information you can give is always appreciated by me. Thank you

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