SP Suburban coach (they were NOT "Harriman" cars), common fixtures found on Southern Pacific's San Jose-San Francisco commute line from when they were built in 1924 and 1927, until their retirement in mid-1985. Many cars were later sold or donated to museums and excursion operations throughout the West. Note the spotting feature where the letterboard does not continue over the end doors, a typical feature of most Harriman-era cars.

Roster of SP 72-foot “Suburban” commute coaches
Class 72-IC-1, SP series 2085-2144 (60 cars) built by Pullman, Lot 4729, Nov 1923 to Feb 1924
Class 72-IC-2, SP series 2145-2154 (10 cars) built by Pullman, Lot 4818, Oct 1924
Class 72-IC-3, SP series 2155-2159 (5 cars) built by Standard Steel Car Co., Lot ___, Dec 1927