Modified 25-pounder guns

[Hanno Spoelstra]

Now, what type of 25-pdr is this? The carriage has a narrowed axle, matching smaller diameter firing base, narrowed shield and folding trail. Is this the Airportable/Airborne version?

http://www.ktr.nl///fotoalbum/veluwe/veluwe1.jpg
Source: http://www.ktr.nl

I'd like to learn more about it, as the Netherlands Army has had quite a number of them in use. Next to the one shown above, there at least two more of these 25-pdrs existing (although at least one of them is a bit of a mix 'n match).