I must have used the wrong terminology, so let's try turret storage bin? Yes, the Firefly has the radio box attached to the rear of it's turret, but it too would have this storage bin strapped to the radio box.
Not asking about radios or antennas, but the type of fasteners (circled in red). The ones here look to be nuts screwed on from the outside. Am asking is this the standard method for these bins that were used in NW Europe theater? Again this style of bin is different than what was observed in the linked b/w photo.
