a drinking vessel appr. 4 kilo with the faked name of J. KOPF and faked Estonian marks, silver content 875.
The vessel

The additional mark found ( which I have on a communistic object, but is complete unknown to me), silvercontent 900

The mark I have, but don´t know who it is

Who is behind this mark????
Anny help very apprechiated!
Regards
Postnikov