I got a nice QSL for my reception of NDB VNA on 364 kHz, Vanja, for Umea airport some time ago: https://petersdxcorner.nl/sweden/qsl-ndb-vna-354-vanja/

Chris from Aviseq sent me some pictures when they had to do some inspection and maintenance work on the VNA beacon a few weeks ago. Quite a challenge in Swedish winter conditions: