Valvo RV2,4P700 pentode. This has 07/45 marked on the glass and 39/44 H on the base. It has the Wehrmacht markings on the glass as well as "WaA745" underneath.

"12A" is scratched onto the base, and written on the box.

It measures 48mm overall, 20mm across the glass and 25mm across the base excluding the pins.