These photos are available thanks to Art Peterson. He is the curator of the Krambles-Peterson Archive which contains a wealth of historical photos from Chicago transit. Art has generously allowed us to share some of the photos from the archive. When available, he has also provided dates, locations, photographers, and background information on the photos. Thanks so much Art!!
KP0169-CTA #2858 series car Westbond, looking east from the Canal station - 12/18/1951
KP0170-CTA #2858 series car on the Garfield line, Westbound approaching the Halsted station - 05/1952
KP0171-CTA #2858 series car heading a Westbound train at the Marshfield station - c1953
KP0172-CTA #2908 on the Stock Yards Branch at Racine - 09/30/1957
KP0173-CTA #2909 Westbound passing Market Tower - 07/1953
KP0174-CTA #2917 and mate sitting in the Kenwood pocket track at 40th & Indiana - 09/30/1957
KP0175-CTA #2919 and sister car in work service at Skokie - c10/1961
KP0176-CTA #2925 near the Vincennes station on the Kenwood Branch during the last day of the branch's operation - 11/30/1957
KP0177-CTA #2926 crossing Canterbury on the Westchester Branch - 03/1949
KP0178-CTA #3088 Westbound approaching Lake Transfer - 02/24/1951
KP0179-CTA #3101 Eastbound near Marion - 04/03/1949
KP0180-CTA #3133 at Marion - 08/1951
KP0181-CTA #3134 Heading a cut of cars on the scrap line at Skokie - 04/17/1954
KP0182-CTA #3137 Eastbound crossing Garfield Park - c1950
KP0183-CTA #3139 in the Kenwood Pocket at 40th & Indiana - 10/31/1953
KP0184-CTA #3140 Westbound on the Lake street grade level trackage - 07/15/1950
KP0185-CTA #3145 Westbound near Home Ave - 08/12/1951
KP0186-CTA #3155 Eastbound in the Marion station - 08/12/1955
KP0187-CTA #3162 approaching Lake Transfer - 08/1950
KP0188-CTA #3162 during an equipment transfer west of the 40th & Indiana station - 06/21/1954
KP0189-CTA #4009 near the Swift station on the Stock Yards Branch (The steel cars were working the Stock Yards Branch during the 1952 Republican National Convention 07/07-11) - 07/09/1952
KP0190-CTA #4020 along with another pair of cars pose at Skokie Shop during CERA's 25th Anniversary weekend fantrip #105 (one of the articulated 5000s is visible in the background) - 05/26/1963
KP0191-CTA #4021 heading a Northbound train of cars at Evergreen crossover - these cars are being transferred to the Logan Square line to replace 6000s on the subway - 10/11/1952
KP0192-CTA #4046 on the back end of a Southbound train going over the North Shore Channel - c1960
KP0193-CTA #4061, with a beautiful fresh paint job, leading a Northbound train at the Sheridan Curve - 10/1952
KP0194-CTA #4067 in use as a storeroom at Skokie - 10/04/1970
KP0195-CTA #4071 in use as a temporary storeroom at Harlem & Lake - c03/1966
KP0196-CTA #4073 heading up a Northbound Ravenswood train at Sedgwick - 09/19/1958
KP0197-CTA #4101 heading up a Westbound Garfield train at Des Plaines - 05/03/1957
KP0198-CTA #4067 working a Republican National Convention Special on the Stockyards Branch at Halsted - 07/09/1952
KP0199-CTA #4172 leading a Westbound Douglas train at Racine - 09/19/1958
KP0200-CTA #4185 adjacent to Wilson Shops - 08/05/1950
KP0201-CTA #4188 (interior) while in the storage line at Skokie - 04/29/1969
KP0202-CTA #4191 with a scheduled Congress train off the end of the Harlem platform - 09/14/1958
KP0203-CTA #4208 at Van Buren & Market - c1956
KP0204-CTA #4214 Eastbond entering the LaSalle-Van Buren station - 05/27/1956
KP0205-CTA #4235 Southbound at Wilson Shops - 06/1950
KP0206-CTA #4242 Southbound, exiting the State Strreet Subway at the State & 13th portal - 09/01/1952