Strange Hallmarks

[mp 40]

Can anyone please identify these hallmarks?
It is a flat hook with dolphines that I suppose will hang to a belt.
mp 40



I have added the back so that the item will be more clear.
Thanks.

[frenchie_myriam]

Hello,

The crown on an M could mention that it is from Belgium city of Antwerpen year 1738 but I am not 100 % sure.

Best Regards
Myriam

[mp 40]

Hello,

The crown on an M could mention that it is from Belgium city of Antwerpen year 1738 but I am not 100 % sure.

Best Regards
Myriam

Thanks Myriam for the info, I thought that since I am from Malta it could also be M for Malta. I also do not know :-))
Alfred