FlyerTalk Forums - View Single Post - KLM house bottoms and their difference- can u explain it?
Old Oct 20, 2018 | 10:52 pm
  #9  
PHXflier
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In my collection, the newer ones (about 2015 and beyond) do not have HKDNP, whereas the older ones do. According to https://historiek.net/mooie-borrelve...huisjes/38814/ and https://zakenreis.nl/reistips/sterke...bij-de-borrel/ (in Dutch), they have been manufactured in Hong Kong since 1995. Additional interesting info about KLM huisjes is at Postzegels en KLM huisjes verzamelen. Port Betaald, port in NNG en Mercurius proef Page 5. (also in Dutch).
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