Watch List notes:

Banco Central de Guatemala, 1 Quetzal ND(1934-45), Colour Trial Specimen, blue on lilac and ochre underprint, quetzal birds on pedestals on left and right, reverse blue with two diagonal red SPECIMEN overprints, perforated,, (Pick 14acts), in PMG holder 58 Choice AUNC - with blue instead of the issued green colour.

Estimate: £250 - £300