Watch List notes:

INDO-PARTHIANS, Margiana or Sogdiana. late 1st century BC. AR Drachm (2.40 gm; 17 mm). Margiana mint. "Helmeted" Countermark issue. Imitating countermarked drachms of Parthian king Phraates IV. Diademed and draped bust left; behind, eagle left, holding wreath; on neck, circular "countermark\" of helmeted king right / Archer (Arsakes I) seated right on throne, holding bow. Senior 199.2D; Sellwood 91.13; Shore 473; Sunrise 494. Minor porosity, otherwise well struck. Choice aEF with some original deposit. Rare.
Estimate: 150 USD"