0.50 Quetzal

Thomas De La Rue printed the entire P#51 series for Guatemala across a span of eight years, an unusually long production run for a mid-century Latin American fractional note. The Banco de Guatemala had relied on De La Rue since the early postwar period, partly because domestic printing infrastructure capable of handling security paper simply didn't exist in Guatemala at the time.

The watermark is the sole security feature — modest even by the standards of the early 1960s, when intaglio printing and security threads were already common on notes of equivalent value elsewhere in the region.