1878 (May 23): Cover sent stampless from Mayaguez to Genova, Italy at double rate, with two 'T' markings overlapped by Italian 1870 Postage Due 40 c. pair and single 1 l. tied by 'Genova' datestamps on arrival (June 19). Reverse with London transit cds in red. An attractive cover. (Image 1) (Image 2) (Image)