Here's a sim U-1939 two piece dryspot insulator from England. Has the Bullers logo on the skirt and the scarce BAP incuse marking which indicates this was used on the Buenos Aires Pacifico railroad in Argentina. The cap is incuse marked (in a circle) with tiny letters: Industria Argentina FAPA.

This example measures 2 5/8" wide x 4 5/8" tall, which is smaller than the British used examples. Has small base skirt flake with a thin base flake [id=662414470]. Otherwise excellent condition. Retains original internal wires.

First one of these offered on ICON! First email gets this scarce dryspot for the reduced price of only $30 shipped. Thanks!