Vintage woodbois!
I don't know many other folks who have the capability of doing this - either because they lack three vintage US service rifles, or because they lack the eldritch forgotten lore of how to employ the stacking swivel. Probably both, mostly.
Rifle nearest the camera is a prewar Rock Island Arsenal 1903, serial number estimated to late 1908 production from arsenal records. Yes, this makes it one of the early rifles pre-improved heat treat.
The other two rifles are both wartime Springfield Armory M1 Garands; one serial number estimated to June 1943 production, the other August 1943. These are both CMP Expert Grade reclaimed rifles with new Faxon commercial barrels and Boyd's walnut furniture.
All three rifles are in all-original configuration, though as expected for any service rifle having undergone an armory rebuild, they're parts mongerels.
Apologies if this violates Rule 8 for any vintage service rifle enthusiasts!