Lot
383 
Mexico, (Chalco) Chalco, bold oval handstamp (YB CL1, rarity 10) on fresh colonial folded letter dated March 11, 1783, to Mexico City, Very Fine, a very rare colonial postmark; with 2009 MEPSI certificate. Estimate $300 - 400.
Sale 60: The Westpex Auction
Mexico - State/Provincial Postmarks
Lot 383
Mexico, (Chalco) Chalco, bold oval handstamp (YB CL1, rarity 10) on fresh colonial folded letter dated March 11, 1783, to Mexico City, Very Fine, a very rare colonial postmark; with 2009 MEPSI certificate.Estimate $300 - 400.