I found myself picking up an unexpected number of crowns while pursuing a decagonal Constellation crown. See below for the lot. Many of them are in rough shape - particularly the gold ones. A few questions - 1) See any diamonds in the rough here besides the decagonal ones? I’m familiar with photos 2 (3 thick decagonal crowns for 50s Constellations and the rest thin decagonal crowns for later Constellations), 3 (Seamaster clover crowns for 40s/50s Seamasters), and 4 (60s Seamaster scalloped crowns). What about the others? 2) Some are missing the gasket on the inside - are these replaceable? See the last photo for an example from a thin decagonal one. 3) One or two of the Seamaster clover crowns have a tube size of 2mm rather than 2.5mm. Any idea what these are for? As far as I’m aware all the 40s/50s Seamasters have 2.5mm tubes. Maybe these are for the Constellation calendars that are occasionally seen with the clover crown? Thanks for the help as always!