Hi. I'm working on my first kit in 50 years, Tamiya's M4A3 (75) Sherman. Wartime photos of Shermans and many models frequently show a lot of stuff hanging on turrets. My question is, what were all the backpacks, helmets, etc, hanging onto? Photos of turrets on the Sherman Minutia website show the turret sides to be relatively smooth except for sometimes a lift ring. Did Sherman crews in the field weld hooks or some other devices to their turrets so they could have a place to hang things?