eBay
As new condition, bought for an amp project that didn't happen.

4AB3C1B Spring Reverb Can 2-spring (replaces Fender 022921 and 064063)

TAD-Reverb BLACK HAMMERTONE FINISH

primary used by all Fender® amplifiers with tube reverb from 1963-1990.

Also used in Reissue models like:
Fender® Princeton Reverb
Fender® Deluxe Reverb
Fender® Vibrolux Reverb
Fender® Pro Reverb
Fender® Super Reverb
Fender® Twin Reverb
Fender® Quad Reverb
Fender® Super Six Reverb
Fender® Vibrosonic
Fender®`63 Reverb Unit Reissue
Fender®`65 Princeton Reverb Reissue
Fender®`65 Deluxe Reverb Reissue
Fender®`65 Super Reverb Reissue
Fender®`65 Twin Reverb Reissue
Fender®'65 Twin Custom(TM) 15

also used in Mesa Boogie®
LAB Series, L5, L7, L9
Koch® Powertone I

length: 42,5cm
springs: 2 x 2

Input: imp. 8 Ohm / 0.7 DC Ohm

Output: imp. 2250 Ohm / 200 DC Ohm