Congrats on your beautiful Pierce 'Special'! I believe, as Shawn suggested above, your bike to be a non-Racer Pierce Special, based upon frame size. From the photos it appears the frame is 24" or even 25", a taller frame than Pierce would have used on Racers, which were only available in 21", 22", and 23" sizes. The non-Racer 'Special' was available in five different frame sizes, from 21" through 25". The tubing diameter on the 24" and 25" 'Special' would have been 1-1/4" in the main tubes, versus the 1-1/8" Shelby seamless tubing used on the smaller frames.