Undated (ca. 1860s) Robbins, Royce & Hard Store Card Mule. Miller-NY 714. Copper-Nickel. Plain Edge. 19 mm. Choice Mint State.Gorgeous pinkish-tan surfaces are fully struck with an overall smooth, satiny finish from the dies. Copper-nickel strikings of this muling were produced to the extent of just 15 pieces (per Rulau, 2004).From the Q. David Bowers Collection. Earlier ex Dr. David Litrenta Collection, February 2006. Collector tag with attribution and provenance notes included.