Lot
323 
Mexico, Airmail Official, 1932, 50c dark blue & claret, "Servicio Oficial" overprint, o.g., lightly hinged, rich colors, very fresh, F.-V.F.; with 2000 M.E.P.S.I. certificate. Scott No. CO18 $1,000.
Sale 88: The Sescal Sale
Mexico - Back-of-the-Book Issues
Lot 323
Mexico, Airmail Official, 1932, 50c dark blue & claret, "Servicio Oficial" overprint, o.g., lightly hinged, rich colors, very fresh, F.-V.F.; with 2000 M.E.P.S.I. certificate.Scott No. CO18 $1,000.