Nichol Kola Embossed 10"x 14" Tacker sign 1950's ?

I just got this off E-Bay on a "make offer" type deal. It's 10"x 14" Embossed Tacker sign and say's A-126 and made by "The Parker Metal Dec. Co. Balto. Md." No Date on it. I thought it would clean up better but the paper thats stuck too it did damage to the paint and stained it. I used hot water and nylon brush but the paint that was damaged started coming off, so I quit. I'm dissapointed that it didnt clean up better but we learn as we go, I still like it. enjoy.