1 Oz Liberty Duty Honor Country Round BU

Nice collectible antiqued round. The mint and mintage are unknown. At least one other round exists similar to this one. It has the same reverse, but the obverse is a skull of George Washington.

Obverse: The central image on the obverse is a right-facing skull of Queen Elizabeth.  She is wearing the royal diadem. The word "LIBERTY" is inscribed at the upper right. 

Reverse: The central feature on the reverse is the weight of "1 TROY OUNCE" inscribed within a circle of 3 concentric rings. Sprigs of laurel flank the inscription while a ring of five 5-pointed stars can be found immediately above it. common motif of an eagle clutching an olive branch in one talon and arrows in the other.  The motto of "DUTY HONOR COUNTRY" is inscribed at the top outside the concentric circles.  The purity and content of ".999 FINE SILVER" can be found below. The outer edge of the round is decorated with a scalloped pattern.