Panama, 1876 (Mar. 20) Panama to Newark, England, cover bearing Great Britain 6d gray, two pairs, tied by clear strikes of Panama "C35" circular grids on cover to Newark, England, matching "A, Panama, MR 20 76" British post office cds, endorsed "Via West Indian Mail" at top left, Newark (4.13) arrival backstamp, Very Fine. Estimate  $500 - 750. $0 (Image)