There was also a Norwegian wooden anti-tank mine, called M/1951A and,
like the A/P mine of 1951, in use at least into the 1980s.
It was based on the German WW2
Holzmine42 design, and also used a ZZ42-like igniter.
The explosive charge consisted of 14 500g blocks of TNT (i.e. 7 kg), and it needed a pressure of about 200 kg to ignite.

Information thanks to Per Lilje.
Scan thanks to Kristian.

Photo Kristian