Here's a CD 536 (front skirt) ISOREX VI (rear skirt) HC 64. This manufacturer is unlisted on NIA website or the books for this cd number! This profile is different than all the other makers in this cd. There is a CD 536.2A with this embossing but the measurements of this insulator match dimensions of the CD 536.

Has 2 chips, 4 small dings, 2 tiny tic marks and hard to see base bruise that flares into lower skirt.

First email gets this unlisted French insulator priced to fly for only $38 plus 11 shipping. Thanks!