this rare milk is embossed O.S.P. only, which stands for Oklahoma State Penitentiary, and McAlester has the ability to be proud of having the pen there.
Learn something everyday Stephen, I never noticed the K.C. Bev bottles where different like that. THANKS ALOT STEPHEN, now I have another bottle to look out for.[]
I know of five different KC Beverages from McAlester. One is a war time bottle that was smaller in size (12 ounce maybe) like other bottling companies did and an older one white label that I had but seem to have lost somewhere.