If you were an accordion player anywhere in the world during the 1930's, this is the accordion of you were dreaminf of owning. In very good condition for its age. Keyboard measures 19" x 5 3/4". I was asked if there was a model number and looked on the back and found 5136 imprinted. I assume that is the model number. It also says "U. S. Pat Nos 102700 - 72337 - 1688151 Italian Pat No 346131-Other Pats Pending". I added a video to youtube of a man playing this accordion. It is under the title "Excelsior Accordian Peoria". Due to fraudulent activity I have previously encountered, I will not ship to Florida.