This vehicle was manufactured by General Motors Company in 1943 under contract SM2849 and was delivered to the British in June 1943. It carried wartime registration number P5576180. In 1948 this was changed to 77 YP 09. It served with 19 Amphibious Squadron, Royal Corps of Transport.
https://collection.nam.ac.uk/detail.php?acc=1998-09-71-1