Yes, it was. the ammo caliber was a 105mm, used by some special close support variants of the Sherman M4 and the self propelled "Priest" . Some fragily or "overhardening" in the Panther steel armor is noted.
Probably there are many some in the Bundesarchiv, the problem is, as you see, the date is not in every photo so is kind of difficult to pinpoint the ones involved in the other side of "Cobra".
I have the confimation, it's a panther A and in normandie, I search other picture of this N°200 (it's probaly a panther of panzer lehr becouse the big number in red)
Good stuff !
Yes, it's a U.S. star on the turret, the 'universal' recognition marking for US, British, Commonwealth and other allies in N.W. Europe, for all vehicles.
....and large allied markings were specially a important issue for this tank is particular. I found a source who said the "Cuckoo" was lost in action against Tigers, but that info is somewhat vague.
Cuckoo was used by the 6th Guards Tank Brigade, a Churchill unit, which liked especially the accuracy of its gun, and IIRC was discarted when they ran out of spare parts. That from the unit history, which I read a couple decades ago.