Watch List notes:

Grand Duche de Luxembourg, colour trial 20 francs, ND (1955), red serial number A 000000, green and multicoloured, Grand Duchess Charlotte at right, reverse green, the village of Ehnen and the river Moselle, (Pick 49ct), mounting traces, perforated and red SPECIMEN overprint, uncirculated and scarce.

Estimate: £180 - £240