Everything looked good and I picked it up. It’s a 3x9, Rear deraileur is Ultegra RD-6600, front derailleur is ultegra FD-6700, brifters are Ultegra FlightDeck ST-6700 in need of a good cleaning. Other stuff is DuraAce dual pivot calipers, Sun Ringle Equalizer 21rims, PowerTap hubs. I measure the rims at 21mm outside (brake surface) and 16mm inside (where the bead seats).
edit: I came up with 3x9 just by counting clicks on the shifters.
another edit: rear deraileur certainly looks like a short cage to me. it's 49mm between the sprocket axles.