This is not a postcard, but rather an arcade card, which were sold in vending machines at places like fairgrounds and carnivals. Often they were the prize in some mechanized test of strength or skill. The cards are about as heavy as pasteboard, and are blank on the back.
Arcade cards from later eras featured everything from pin-up girls to movie stars to stills from TV episodes. Earlier cards from the 1920s and 1930s, however, generally featured comic (and usually slightly risque) sayings and drawings.
From kris:
Its symbolically obvious the cranky constable suffers from ED.
From Cheema:
Dear Friend!
Hello!
Thanks for adding my blog link to yours.
I was about to add your link to my blog http://mycoolcovercollection.blogspot.com/
when I noticed that I do not know from which country do you belong to??? Please send me a message with your country of origin so that I should add your blog link to mine.
Waiting anxiously for your kind reply
Best Regards
Yours Cheema
From Eddy:
Funny card… ;o)