R2 STC 1932 Standard Telephones & Cables Micromesh balloon nickel plate full wave rectifiers

Description

Stunning pair of nickel plate 1932 rectifiers made by STC Micromesh type R2.

Such a masterpiece of a valve with slanted anode at 45 degrees, insulated filaments and cathode connected together at the top.  The Filaments are insulated.

Plate is Nickel version of these R2, tested 100% emission and working order.