three types of shermans

[HaroldLukas]

This picture is from Tank Museum (2995/E1). Tanks are identified right from left as a Vc, III and a Ib. (see also Haywards Firefly page 121)

My questions:
1. Does anybody know where and when this picture was taken and to what unit these shermans belonged?
2. If taken in NWE: did Commonwealth-forces field 75mm's on M4A2s with 47degree glacis and large hatches?
3. Last but not least!!! Does anybody have info on Ib's in NWE before 5th Canadian Armoured Division was transfered to Holland?

Thanks in advance
Harold