Worldwide Stamps and Postal History

Netherlands. 1931-32 Covers and cards with first type transormas of Rotterdam, the idents comprising a vertical column of four or more numbers or letters. The written up display on nine pages with c.5mm 1234 in red, c.31⁄2mm 3456789 in red, c.5mm AAAA in red, black, green or violet, BBBB in red, black or violet, CCCC in red or green, c.3mm BBBB and CCCC both in red. (13).
Suggested price: £ 200-300