This chart may assist in the identification of the various "types" of Bunn and Bunn Specials. (Model 14, 15, only). It seems that Hamilton had a difficult time coming up with a "standard" movement signature for the Bunn Specials. Credit goes to the Bunn Special experts of IHC185 who have shared the information used to assemble this chart.
Production numbers are approximates and will change as new information is collected.