Seeking some help in identifying a Model 1917 bayonet marking

[Flying10uk]

You haven't shown us the scabbard mount/mouth-piece. I'm guessing that it's the American M1917 scabbard with either of the 2 versions of mounts/mouth-pieces rather than the British 1907 scabbard used with the Pattern 1913 bayonet. I would speculate that the "AD star" may be a manufacturer's mark of the leather scabbard?

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[22SqnRAE]

You haven't shown us the scabbard mount/mouth-piece. I'm guessing that it's the American M1917 scabbard with either of the 2 versions of mounts/mouth-pieces rather than the British 1907 scabbard used with the Pattern 1913 bayonet. I would speculate that the "AD star" may be a manufacturer's mark of the leather scabbard?

Thank you F10. I'll post photos in response in another comment.

[22SqnRAE]

In response to F10's valid query, here are the photos:

Attachment 84720Attachment 84721

My take on the bayonet/scabbard combo is a US Model 1917 Remington bayonet, coupled with a US made, UK owned Pattern 1913 scabbard, for a previous P14/Rifle No 3 Mk 1 bayonet. My understanding is that the UK owned many P14/Rifle No 3 Mk 1 post WWI and also bought many US M1917s around 1940 when a great deal of materiel and arms were lost at Dunkirk. In UK service, the US style wire belt hanger was incompatible with the Pattern 37 webbing, which had a webbing frog and hence required a round or teardrop shaped button to attach -as this scabbard has.

A good thought on the maker, though I haven't seen such an obvious maker's mark on any of my other US Springfield, M1917 or Garand bayonet scabbards. Hence, my thought was that this stamping was a unit ownership mark.

Any other ideas from the audience?