Here is a pair of CD 20 E.S.B. Co Phila, Pa battery rests. There are both variants, the left has D 1517 under crown. There is a small flea bite on the crown. It has a small dark inclusion in glass below the D 1517. The right one has two amber swirls in the crown. It has a couple of microflakes on base edge, does not detract from displaying. It has two small white inclusions in crown area.

Was asking $37 for the pair plus shipping. NOW $25 plus $6 shipping. THE D 1517 is worth that and you get the other for free.