Crestworth Telstars, Copper One and Two Piece Bases.

[CrestworthLimited]

Crestworth Telstars come in two different base styles, the more common one piece with unclosed base plate with the bulb holder statically fixed with a bolt and the lesser seen two piece base with floating bulb held in a removable cup design that inserts into the main base.

[Todd Miller]

The copper looks nice !

[Critter]

Nice Grant!