They did say the photos were most likely taken near the Channel Ports though, on Continental Europe. Though since nothing was written on the photos there is some chance it could have been in the UK.
On another note Fireflies weren't particularly better armored than normal Shermans were they? My impression has always been that they were essentially Shermans with extremely high velocity guns which were actually effective against the heavier German tanks.
Also was the Pz. IV really any more effective than the Sherman? For some reason I have the impression that the Sherman and the Pz. IV had essentially the same gun, very close to the same thickness of armor, and that the Sherman had sloped armor making it perhaps a pinch better armored. Then again I haven't compared the stats in quite a while...
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