This 1947 Stromberg-Carlson model TV-12 belongs to my girlfriend, Jamie. Her collection now consists of three Restored B/W sets, one Unrestored B/W set, but no vintage Color models (yet).
The 1958 Sylvania model 31C304M (restoration in progress) belongs to my Cabinetry Specialist, Todd. The '58 Sylvania is the earliest Color set in Todd's collection. Todd also has several vintage B/W sets in his collection. His oldest Restored set is also a 1947 RCA 721TS. My Assistant Technician, Dave, has a restored '59 RCA model CTC-9 in his collection, his oldest working Color model. Dave also owns several working B/W sets and multiple working Color sets. As I remember, Dave's oldest working set is a '49 model.
Actually, I have two fully-restored 1947 models in my personal collection. This is my other '47, a Dumont model RA-103D "Chatham" nicknamed "the Doghouse" for its distinctive "trapezoid" cabinet shape. Also noteworthy about the Dumont and Jamie's '47 Stromberg-Carlson is their use of a continuous-coverage tuner. Dumont sets and licensed "Dumont clones" like Jamie's set used a Mallory "Inductuner" which tuned continuously from 44-216 MHz (TV channels 1-13) like a radio dial. TV channels 1-6 were individually marked on the dial between 44-88 MHz, the 88-108 MHz FM Broadcast band was next, then Aircraft/Police frequencies (not individually marked), and finally TV channels 7-13.
The oldest set I've personally restored to date is a 1946 RCA model 621TS (for a client in California). The RCA 621TS is a 7" B/W "Channel 1" model, which was an earlier version of the circuitry eventually used in RCA model 721TS. The 621TS is also noteworthy because its original design dates from 1941 (originally intended to be introduced as "model TT-7" for the 1942 model year). The 621TS cabinet was designed by famed "Machine Age" cabinetry artist John Dos Vassos, designer of cabinets for all of RCA's Pre-WWII models (tabletop model TT-5, and console models TRK-5, TRK-9, and TRK-12).