Pénjamo is 100 kilometres south-west of Guanajuato.
We know of two series.
|5c||includes number 6694|
|10c||includes number 3055|
|20c||includes numbers 157CNBanxico #11038 to 4809|
These have a stamp reading 'MUNICIPIO DE PENJAMO – EMISION GARANTIZADA' on the reverse and the facsimile signature of Augelio(?) [ ][identification needed] on the face.
A 5c note was dated 15 September 1915