Panama, 1906 Cana, Darien Gold Mining Co., registered cover bearing mixed issue franking of 1903, 5c blue (70) and 1904, 5c blue (78) strip of three, all tied by two strikes of indistinct cds and some manuscript., Panama framed registry and oval "AR" handstamps, reverse with New York (1.13) and Philadelphia (1.13) backstamps, wax company seal, insignificant faults, F.-V.F. Estimate  $200 - 300. $0 (Image)