Mexico, 1892, 10c vermilion, Advertising Sheet and Envelope, addressed to Mazatlan and canceled by 1894 Manzanillo cds, small flaws around die cut window, otherwise Very Fine, these were printed as a special order containing a printed flyer with many advertisements and an embossed image of the 10c, the envelope has a cut oval, the user would only pay 5c and the remaining 5c would be subsidized by the advertisers, a rare postally example of this unusual advertising entire, approximately 10-15 exist used with this being one of the finer examples. Estimate  $250 - 350. $0 (Image)