Banco de Mexico - Direccion De Emision Fabrica De Billetes, 1989, Uncut Proof Sheet of 3 Advertising Notes on Paper. Mexico, 20 denomination, Uncut uniface Proof sheet of 2 and 3/4ths of the top note, printed on white paper in dark red without underprint, Portrait of Don Rodrigo Gomez on right and the bank on the left, "Muestra Sin Valor" engraved in small letters as part of the design on the right. XF to AU due to archival folds and handling on right. Printed by Banco De Mexico. Banco de Mexico - Direccion De Emision Fabrica De Billetes, 1989, Uncut Proof Sheet of 3 Advertising Notes on Paper. Mexico, 20 denomination, Uncut uniface Proof sheet of 2 and 3/4ths of the top note, printed on white paper in dark red without underprint, Portrait of Don Rodrigo Gomez on right and the bank on the left, "Muestra Sin Valor" engraved in small letters as part of the design on the right. XF to AU due to archival folds and handling on right. Printed by Banco De Mexico.