Just got my first two. From these and Hannants website it appears that they are doing a range of variants -
Skoda 100mm vz 14 Howitzer - spoked wooden wheels ditto but vz 14/19 with longer barrel 10cm LeFH 14/19 (t) - German WW2, ?pressed steel wheels Obice da 100/17 Mod. 16 - Italian mountain gun mod with small pneumatic tyred disc wheels
The ones I have are the vz 14/19 and the Obice (both post-Great War - in fact the Italian gun's disc wheels may even be post-WW2, though this is unconfirmed). Basically they are the same kit with different wheels and shields and axles. Plus points are the optional metal/plastic barrels and the fairly thin shield mouldings. Not cheap though.
I have not checked dimensions and details, but can say that the Italian gun seems to lack some of the details of the mountain conversion, especially the trunnions under the carriage for lifting/transportation on trailers when broken down. There are also some annoying sinkage marks around the wooden wheel hubs of the other kit.
