Here is some information from Julia Carroll. Weiss jewelry marks are easy to read and changed very little over the 30 years the company was in operation. The Weiss name can be stamped on the piece or applied to an oval cartouche. "WEISS" printed in caps...1942. Sometimes this mark appears in an oval cartouche, and IT can also be stamped INTO the metal of the piece. "A W Co". with the "W" enlarged and sporting a crown..1950. This is possibly a mark used by Albert Weiss to identify his personal designs, but I am unable to verify this fact. This is a rare mark, and the information about it is limited. "Albert Weiss" in script ..1951, "WEISS" in script ....1951, "Weissco"...1951, There is some speculation among collectors about whether or not the name Weissco is a mark of Albert Weiss. In my opinion (Julia Carroll), based on the look of the jewelry with this mark, Weissco is a legitimate Weiss signature and a relatively rare one. "Weiss" in caps, with copyright symbol...It is unclear when this mark was first used. She goes on to say that sometimes the pieces are not marked and that they were sold to department stores who sold them under their name. These unmarked pieces do not command the same money. She goes on to say, "For the most part, Weiss jewelry is well designed . Avoid purchasing unsigned Weiss jewelry unless the unmarked piece is obviously part of the set. Unfortunately, sometimes only one piece in a group is marked! Weiss jewelry signed " A W Co.," with a crown over the W, is highly collectible. Note: Reproductions of Weiss Christmas trees are appearing in the vintage market place. Use caution. He is noted for the pave icing that wraps around his pieces. Speaking on my behalf I have some Weiss pieces and will get a picture to you. It shows that pave icing. Albert Weiss founded the company in 1942. After his death Michael his son, continued the business until 1972.
