Printed 'SERVICIO POSTAL MEXICANO' parcel post receipt form inscribed 'FORMA 9' and with 'Talleres Graficos de la Nacion - Mex.' printers imprint at lower right used with fine strike of SERVICIO AMBULANTE 11 duplex cds dated 24 SEP 1929 with 'State WYO' destination handstamp and 'A Moto' agents name handstamp in purple. A very unusual and scarce item.