CD 577.5 ?

Basically very near mint condition. Tiny shallow eraser size skirt flake on outside skirt. on the Backward "S" STAR Note the blot out on this insulator..

Base nibbling as shown in the picture on the regular "S" STAR Insulator...You are getting the pair!!!

Approximately 3 7/8" Tall x 2 7/8" Dia.