Are these hallmarks (marks)? Raised not punched.

[gsmoggy]

Hi members

Re an old post of mine, Just noticed these marks on rim of small box,

Would be interested to know are they hallmarks or something else.

If they are marks very unusual they look raised and not punched. very small.
or is it just a manufacturing fault.
Guido.

[gsmoggy]

Another image of mark area.

Guido.

[AG2012]

Hi,
No marks as far as I can tell.
1. Protuberance to snap when closing the box.
2. Hard solder produces this pattern when molten at high temperature and then immersed in acid pickle.
Regards

[Traintime]

Enlargening the first and last photos (flip over) shows what appears to be letters stamped. N-like in first image. M-in-shield next to combined LF in last photo. Try shooting through a magnifying loupe in this area. The rest if it probably is just the residual irregularities mentioned. Even it wrong, might be worth the shot.

[gsmoggy]

Thanks,AG Traintime.
Will try and do other larger images . Many thanks.

Guido.

[gsmoggy]

Some other images of marks,very difficult spot to take better image.

looks to me Ag may be right not marks,

Not sure if these are any better.

Guido.