Mine was a Schwinn coaster bike for little guys, and I was about 6 (1951 or so). All I remember is that it was blue, and had metal fenders. I remember the fenders because when we were playing out in the front yard one evening, I tripped over it, fell against the fender, and cut my hand pretty badly. It took six stitches (I just counted them

). Amount two weeks later, I fell on the steps going from our garage to the house, and opened that cut again, and got another 4 stitches. But I rode that bike all over the neighborhood.
I recently got this photo of my two sons on my older son's first bicycle. This is from about 1985. I gave Brian a copy of the photo. Here it is.
John