Hi David,
Yes you are right, the 
F60B with 40-mm Bofors has the Cab no. 43, which was widened and has a soft top (left).
There is also the 
Lorry, 3-ton, Anti-Tank Portee which has a Cab No. 13 with soft top (right).
These vehicles were built in an era when many ships ships still had an open bridge - hardy men they were....
 
Source: 
https://nimh-beeldbank.defensie.nl/f...f-cd331fcafb9c