Guanajuato 1861: 8 r. black on red-brown, a quadrisected example used as 2 real on 10 Oct 1861 cover to San Luis Potosi, tied by oval framed "FRANCO EN / YRAPUATO" handstamp in black (Schatzkes fig. 496). A scarce cover. Signed J.K. Bash Scott = $ 250.rn