I have a few pictures from Duxford. It's a great museum, yet their Landwarfare Hall is a photographer nightmare! As a result I don't have that many shots of that area and I've missed quite a few interesting artillery pieces.
6 inch 30 cwt howitzer
7.5 cm GebirgsKanone L/17 M08
Only 12 of these guns were built, and the three batteries equipped with them were sent to the German colonies in Africa.