Identification of team ?
 

Hello, I have this postcard. Uniforms are for Senators and guy in the middle has a BC on his shirt. Anyway to identify this team ? Lower right says "photo by momsen" Back of card is blank. Thanks !

Without anymore know it would be hard to identify. That said, the forum has come up with some crazy stuff before, pertaining to ID's. Good luck!
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No guess here. But it could be BC or CB on the shirt. If you tried BC, maybe try CB?
Best of Luck.
Bob

No help here, I would guess turn of the century to 1910's. great image, love the old baseball RPPC's and welcome to the forum.

On second thought the ears on the guy in the middle...

This was my first thought. This may be a bit of a stretch, but CB has been used as an abbreviation for Columbus. And there was a Columbus Senators baseball team intermittently from 1888 through 1930.

Wikipedia article

Looks like they have dog tags as well.

Punctuation is over-rated
 

I googled "Momsen photographer" and came up with numerous modern companies but I did stumble across somebody or other's genealogy site which had a postcard photographed by the same fellow who was noted to be the barber and a photography hobbyist in Wilmington, Illinois which is in the vicinity of Kankakee so you might have a look around there.

http://www.nejohnston.org/family_pics/NRitchie.html
http://www.nejohnston.org (The photog was noted to be the brother-in-law of one of the family's ancestors. There are email addresses so it might be worth a shot to send them a scan of your ballclub and see if they have any insights. Good luck.

Myrton L. Momsen of Wilmington is the photographer. He was not born until 1905, so much be from the 1920's. Springfield, IL also had a Senators team, which would make sense.

The baseball uniforms in the photo all have collars, which went out of style by the early 1910's. It seems unlikely to me that the image is from the 1920's.

Guess
 

Maybe something along the lines of Blackburn College? They’ve had a team for a long time, although they are the Beavers these days. Or maybe Bradley University was Bradley College back then? Good luck!