The size is perfekt for selfmade soap, which has the same diameter as a Pringels chip package (7,4cm)
I printed it in Black and White PLA to get a good contrast between the stamp and the symbol.
Defaul Prusament PLA settings with 25% Infill.
Both are symetrik to line up the symbole as required.
It also works on other selfmade soap.
The author hasn't provided the model origin yet.