New boy Francis here, I do not have the book but it sounds like a picture of a german loco captured by the allies, and sitting on a waggon. If this is the one it is a DEUTZ, a german production. Several opperated in the UK.
I am a volunteer at the MOTAT (Museum of Transport and Technology) rail section here in Auckland NZ.
We have a similar loco which was ordered from Motorenfabrick
Oberursel in 1912 but due to a shipping strike in Europe it didn't
arrive in NZ until mid 1913. It went to a drainage Board on the
Hauraki Plains and a picture exists of it operating at Ngatea in 1922.
The loco and ten hopper wagons were sold to Mr. Miller of Mercury
Mines in 1940. It was in use there for about five years until mining
It was presented to MOTAT in 1968.
Of note it is the only exisiting Oberusel with its original engine.
The loco was restored and operating at MOTAT some years ago and
currently is undergoing a non priority overhaul and
restoration with a view to it again operating. There is talk of focusing on this loco so that it will be running again for its centenary.
I have a couple of pictures that I will attempt to post