Birks date letters, need help

[sebastian4743]

I have got this Birks silver marks in front of me and cannot tell what year does it correspond? Is it 1880 or 1840 or sth else?

http://static.pokazywarka.pl/i/5493325/ ... 1420647863

[sebastian4743]

[dognose]

Hi Sebastian,

That would be 1940.

Trev.

[sebastian4743]

Thank you Trev!