I want to ask. what tank model are these rings from? thanks in advance bigest rings outer diameter 2m , the smallest 1.77m
A problem lies in there being quite a variation of how rings are quoted/measured. Sometimes listed as crew size, from the interior, sometimes external from engineering specs. Not much explanation of how a given ring is quoted when you go digging (as I'm sure you've discovered). Could you give us the internal diameters? Might make the search a little tighter. If we're lucky, someone who works closely with preserved/serving vehicles or documents will recognise something. Big buggers, though. First wild stab in the dark might be Centurion or Chieftain, assuming you're in the UK?
The Baltic region as a discovery area limits the types that can be considered The data varies depending on the source I have taken in each case the smallest / largest dimensions given (The fact that the rings were built in several parts does not make things easier) The following dimensions can therefore only serve as a rough guide Mk III 1520/1530mm Mk IV 1600/1675mm Panther 1630/1680mm Tiger 1800/1850mm T34/76 1420mm T34/85 1570/1600mm
I could well be proved wrong, but the production markings seen in img.6359 do not look German? The design/shape of the number 2 and the letter P have a Russian look to them. Therefore I would tentatively suggest it is Soviet, and if those markings are on the larger of the turret rings, then it could be from a Stalin/IS2 with a turret ring radius of 1800mm.