Moistener, Ideal Sengbusch PP Inc, Milwaukee, Vintage ,

Add a little water in the bowl portion and you can "lick" your stamps and envelopes with this Office "equipment". This is a "handy" tool used to moisten the envelopes or stamps for mail from the era before self-sticking envelopes and stamps. White glazed ceramic wheel rolls thru water trough to pick up just enough water to wet the glue on the envelopes and stamps being mailed. Very good condition