I assumed that "antiko 100" was a German version of silver plate. I was happy with that explanation until a friend of mine offered me a souvenir spoon from Bremen that he described as silver. This had "antiko 800" on the back of the finial (see below).
He was adamant that this was silver. I believed if it was a German silver spoon there should be a crescent and crown mark on it but I bought it in the hope I could prove him wrong or find out once and finally about the terminology. I know that there are some notations on some silver plate that tell the amount of silver that has been used in the plating process. Is this what these different numbers are? I tried some inter net research but found no independent convincing information to clarify things. There are advertisements asking a high price for items labeled antiko 800. I am hoping the forum members can put facts right for me and possibly also for others.
Yours
Fishless