Netherlands

Ref: P 37 AA   B 10 K/2,  rouletted

Günter Mair catalogue: NEL-A-6 (1936)

Printed with Ref: P 4579 PTT, perforated on both sides

Günter Mair catalogue: NEL-A-16 (1970)

Unlisted, rounded edge at four corners.

.Günter Mair catalogue: NEL-A- (?)

Label with diagonally cut on both sides.

Günter Mair catalogue: NEL-A (?)