Racine, a city of about 82,000 is located on Lake Michigan and has not had a streetcar since before World War II. That streetcar system ran from 1892 until 1940. Like many cities however, Racine has looked at bringing the streetcar back. Plans for a two-mile streetcar loop are included in the 2005 Racine Downtown Plan. It shows the proposed streetcar traveling on State, Main, 6th, and Marquette streets. As far as I can tell there is no target date though, and it's not there yet.
Here's the back of the card, sent to Gladys Knauf in Akron, Ohio in 1921 (?)
The message reads:
We are working at this place today. Best to all. C +M
See Rialto theatre this is where we are today. with star above it.
The message makes me think that C + M were Vaudeville entertainers, performing at the Rialto.