Hello David,
Reportedly Terrapins were used extensively during the Battle for the Scheldt. While M29C Weasels proved to be worthless, the bigger amphibians like LVT, DUKW and Terrapin proved to be decisive for the operations.
Here's another picture taken in Middelburg during November 1944. You can find more here:
https://digitaal.dezb.nl/beeldbank/s...field=terrapin
Not sure Mr. Wheatcroft still has the Terrapin, I read he is currently having ten(!) Sherman tanks restored. Hopefully he will (also) spend his resources on a really rare vehicles like the Terrapin ;-)
H.
Source:
https://digitaal.dezb.nl/foto/0932ca...c-634b75bf90ec