WW1 Royal Artillery sleeve badge???

[harry211]

Need some help with an ID on this "badge". It was found in a WW1 Canadian dump site. Initially thought that it was a RA sleeve badges but don't match any design I can find. Also it has "78mm Gun" written on the gun carriage which makes me think It is not military issue.

It is definitely of WW1 period given the context in which it was found. Anyone any ideas what they could be??

It is brass, about 2cm long and has remains of clip on the back . GS button is for scale.

[Jerry B]

WWI souvenir badge, you see versions with the French 75mm quite commonly, perhaps this is one, rather than 78?