Insulators as follows -- actual postage additional

U-2393 no markings (Australia) -- great blue! previous collector, I think Lu Farin, has marked the base "1970 Mario Borges, Manilla Philippines OTK-PB58 Aus Std" -- no issues -- $18 (Pending)

U-484 (ear incuse) PINCO - great butterscotch color -- no issues -- $5

U-11A (dome) faint G -- nice leather tan shade! dry process -- flat chip at inside thread base -- $5

U-480 -- no markings (Lapp product) -- dark blue - no issues -- $12