While not as hefty as the 48 siliquae posted above, here's my medallion of five siliquae from Constantine, generally cited as being minted for the founding of Constantinople on May 11th, 330 AD. I've read this in a number of places - first from Harlan Berk in the "100 Greatest" book and then in various other catalogs - but haven't found an earlier source for it.
Last time I looked at it I didn't think so... it seemed to be the same metal throughout, and it didn't look like there was a join. (It was described as a sestertius in the auction I got it from.) But I should pull it out of the bank and take another look just to be sure. (It's 30mm and 18.00g btw.) Sorry, I meant the ordinary as, not the medallion. It's normally TR P II, but the BM has this TR P III: https://www.britishmuseum.org/collection/object/C_1992-0509-256 . They say they got it from you in 1992. Thanks for the extra info on the Liberalitas as provenance! It's great to know I have an ex @curtislclay coin. Please keep me in mind if you find any neat/rare SA middle bronzes, that's one of my few areas of specialization.