CX-12 Cunningham NOS original box 1930”s (24/11)

CX-12=WD-12 Cunningham NOS original box NOS 1930”s small hairline crack top edge of base

CX-12=C-11 with UX-4 pin base

(can be subbed for a WD-12 if you change the sockets)

(UX style 4 pin base)

(WD-12 is similar to X99 but has a 1.1 volt filament)