Tungsten light bulb

The tantalum lamp

Written in: Dutch • Cees Janssen • July 10, 2013

As a collector of stamps and stationery from Bosnia and Herzegovina, I came across an envelope bearing a pair of 5 Heller green stamps with an image of Emperor Franz Joseph I. The stamp was issued on October 4, 1912. The...

W over Steam locomotives: There is a mistake on the sheet!

Written in: Dutch

Sjaak Van Tiel over 40 Years of Collecting Postage Stamps (1986): I have many old stamps (strips), mainly from municipalities (including some that no longer exist) and a few from – I think – the royal family. Perhaps also Veldp…

Written in: Dutch

Peter over Delta Works: The Netherlands and water with climate adaptation: Thank you very much for the nice explanation of the design.

Written in: Dutch

Annet Hogendoorn over The piss-pots of Tilburg: Another super fun blog post, and educational :)

Written in: Dutch

Lars over Delft Blue Ceramic stamp a 'deception stamp': Now just get those blueprints out of the catalog..

Written in: Dutch

Erik Boeré over Delft Blue Ceramic stamp a 'deception stamp': The best solution is probably to ignore the ceramics stamp altogether. Fortunately, as the NVPH/Catalog Committee, we already have…

Written in: Dutch