Hey Mike, That makes sense as well. That fact that it reads "2ND" makes me think it may have been done at the factory. If it was done where the bed was added as red58 suggested why would they care if it was a 1ST or 2ND series? Regardless I sandblasted the frame and repainted it. I made up new stencils and painted the date and numbers right back where they were. I just found them to be interesting. SEE YA! Mark