I am looking for replacements for a canister set made in Czechoslovakia in the 1920s or 1930s.  To track down replacements, I would like to track down the manufacturer.  The bottom of each piece says "Yvonne", and

"Czecho-

Slovakia"

and each piece has a number that ranges  in the 330s, such as 337.  

Any help that can be provided would be appreciated!

Thank You!

Tanace