UNITED STATES. Trade dollar. 26.78 gm. 37 mm. (.44 grams light because of the hole). 1878 CC. VF 20; marks on obverse, holed at 12. 1878 CC is the rarest date in the series. Redbook notes that over 44,000 trade dollars were melted in July 1878 commenting that "many of these may have been 1878 CC." Redbook values an 1878 CC at $1300 in VG-8.