Parts for Emco Unimat lathe

Not absolutely sure what these are for, so take the "Unimat" part of the listing with a degree of caution. Possibly for one of Emco's larger lathes, this is a box full of bits including four way quick detach toolpost with a variety of toolholders, knurling tool, some chuck jaws. Oh yes, and a mudhole door gasket for a large boiler. I think somebody got a bit over enthusiastic photographing things for this lot...