F.Joyce 5mm Pinfire Tin

This great F.Joyce 5mm Pinfire tin was in our latest ACCA auction but went for 8 times the estimate.
Naturally I was outbid but helped push the final price of $800. WOW. Too dear for me.
I got the CRB box instead. Photo from the auction list and made lighter to help read the print.
No idea of the headstamp. I think Joyce had all ammunition made for them?

Definitely a neat box, but it does seem rather expensive