cover 1859 (12 Dec.) E. from Mayaguez to Rivadeo, bearing Cuba/Porto Rico 1r. green tied by dumb oval of stars (blue despatch c.d.s. on face), showing fine red Crowned circle "PAID/AT/SAN JUAN PORTO RICO", red crayon "1/9", London Paid c.d.s. and, on reverse, "SAN JUAN PORTO-RICO" double-arc overstruck by arrival c.d.s.; the entire with small fault at lower right, nevertheless a rare and most attractive franking. Photo