I justed posted this as a CD 30 using Gil's computer(see previous picture)...WRONG it's a CD 22.5
This Battery Rest is 1 1/2" tall and 2 1/8" wide.
The CD 30 is wider 3 1/8". The CD 20 has a different profile towards the top. The CD 22.5 listings are messed up in the 2007 Price Guide. No wonder I couldn't tell what I had.
Talking to Charlie Irons he set me straight. If fact... if anyone finds a CD 20 embossed Gould (any color) please contact him. The profile towards the top is the main difference between a CD 20 and 22.5