The first insulator is a CD 104. There is a nice crisp embossing on the front W Brookfield 45 Cliff St NY. There is a popped, no glass missing, pot stone to the lower left of the embossing and another white inclusion below the wire groove on the right hand side. There is a couple of base nibbles and flakes. All sounds worse than it is. There is a graphite halo in the dome. You'll notice on this one there is an over pour that surrounds the upper write groove from the molding process. This appears to be a different manufacturer than the one on the right.

The right insulator is also a CD 104 and has a few various pings and scratches, again sounds worse than it is. This one is very lightly embossed W Brookfield 45 Cliff St NY. You'll notice it has a rounded upper wire groove with no over pour.

$10 plus shipping for the pair.