Lot
600 
Mexico, Official 1927, 5p green & black, overprint inverted, o.g., never hinged, fresh and Fine; with 2000 M.E.P.S.I. certificate. Scott No. O193a $375.
Sale 85: The Westpex Sale
Officials, Telegraph and Postal Stationery
Lot 600
Mexico, Official 1927, 5p green & black, overprint inverted, o.g., never hinged, fresh and Fine; with 2000 M.E.P.S.I. certificate.Scott No. O193a $375.