1 Quetzal

P#80 is a transitional issue — by 1992, Banco de Guatemala was cycling through multiple security printers for the Quetzal series, which accounts for the unusual attribution to three separate firms: CBN, Harrison & Sons, and Oberthur. Whether these represent distinct print runs, a split contract, or consecutive production years within the same Pick number has not been definitively settled in the literature.

Harrison's High Wycombe facility closed in 1997, making this one of the later Guatemalan commissions the firm would fulfill before winding down its banknote operation entirely.