Numeral - 20 digit on the Stamping.

Owner	Herman Cudris Castañeda
Observations	Mi:CH 934ya, Sn:CH 522, Yt:CH 862, Sg:CH 802, Afa:CH 929, Zum:XCH 484
Country	Switzerland
Face value	20
Year	1970
State	Used
Status	Exhibition - Non-transferable
Category	Economy
Format	Vertical
Color	verde
Other information	Perforated stamp Air mail
visualizations	166