ALLRED1950
blue-m the only marking on it is made in Japan

Have a very nice day for the big pond Daryl.
So, first of all, wishes for good health and many coins for the collection.
Yes, stamps and stamps, vouchers that replace money are closer to numismatics than exonumia, mints and copies (as I showed Morgan's copies in another thread)
Stamps really do replace currency.
However, it is not so certain that the mouse with the sponge in question was intended for sticking stamps.
Something similar is used by clerks when working with documents and manually counting cash or also for cleaning fingers - disinfection and the work of girls when beautifying their nails.

An interesting thing here is the announcement by the state that after 170 years, in a few weeks, they will stop paying adhesive stamps on official documents.
This is a request for an extract from the criminal record and a 50-CZK sticker had to be affixed, still valid for a few more weeks.
These are still valid stamps for various applications (registration in the land register. ,,apartment,, stamp 2000,-)
Stamps were introduced 170 years ago in our Austro-Hungarian Monarchy for the reason that officials did not come into contact with cash coins and thus reduced the possibility of their failure.
https://cs.m.wikipedia.org/wiki/Kolkov%C3%A1_zn%C3%A1mka
I think your bowl is intended for a bank or post office clerk.
Ahoj.
Ivan