Pennsy Diesel Locomotives

Baldwin	Baldwin Locomotive Works, Philadelphia PA
BP60
Baldwin Model DR12-8-30 "Centipede" 6000 horsepower 2-unit passenger diesel in 5-stripe DGLE.
BH50
Baldwin "Centipede" downrated to 5000hp per twin unit in helper service. The downrating probably took the form of removing the turbochargers. They were retired in the mid 1960s.
BP20 (DGLE, 5 short stripes)
Baldwin A1A-A1A 2000 horsepower passenger locomotive, type DR6-4-20, PRR class BP-20, "Passenger Shark". 3-unit ABA 6000 hp set as delivered, in the original scheme of PRR Dark Green Locomotive Enamel (almost-black green) with PRR Keystone emblems within gold rings aft of the cab, and five pinstripes in gold (real gold leaf) going back to the rear.
BP20 (DGLE, 5 stripes)
Very soon, the stripes were extended to a point on the lower nose, in a manner similar to the GG1 electric locomotive.
BP20 (Tuscan, 5 stripe)
Baldwin A1A-A1A 2000 horsepower passenger locomotive, type DR6-4-20, PRR class BP-20, "Passenger Shark". 3-unit ABA 6000 hp set as delivered, in the third livery variation - Tuscan with five pinstripes. Some locomotives wore this livery to the end. These units have the later horn positioning and the later large number boards.
BP20 (Tuscan, 1 stripe)
Baldwin locomotive, type DR6-4-20, PRR class BP-20, "Passenger Shark" 3-unit ABA 6000 hp set in the later Tuscan livery with broad single stripe, large shadow Keystone and large PENNSYLVANIA livery.
BF16z (regeared)
Some BP20s were regeared and derated and put into freight service, and classifed BF16z.
Non-PRR Baldwins
SAL Centipede
The Seaboard had one Centipede, which differed quite a bit from the PRR units, as can be seen. I believe it was an earlier unit than the PRR locomotives. I know little about it.
NdeM Centipede
I know nothing about the NdeM (Mexican National) Centipedes except for the photographs I worked from. Anyone who knows any further details, please let me know.
Fairbanks-Morse
C-Liner (FF-16) ABA set
The PRR has a relatively small number of C-Liners; sixteen "A" units and eight "B" units. They were all classified CF16-4 by Fairbanks-Morse, the lowest powered C-Liner model available. They were not exceptionally successful on the PRR and all were retired by 1965. Unlike the earlier Erie-Built locomotives, they would MU with other manufacturers' units.
Non PRR Fairbanks-Morse
Long Island C-Liner
The Long Island Rail Road purchased twelve C-Liners, eight CPA-20-5 (C-Line Passenger A-unit, 2000hp, 5 axles) units numbered 2001-2008, and four CPA-24-5 (2400hp, 5 axles) units numbered 2401-2404. Depicted is one of the latter series, in its original as-delivered paint scheme.
NYC CFA-24-5
The New York Central purchased a number of CFA-24-5 locomotives (5 axle 2400hp C-Liners) for passenger service. No 5-axle B units were purchased.
NYC 3-unit CF-16-4 Lightning Stripe
NYC 3-unit CF-16-4 Cigar Band
The NYC also purchased 4-axle 1600hp units as both A and B units, for freight service. Note the difference in the 'Lightning Stripe' paint scheme between the two.
New Haven CPA-24-5
The New Haven purchased ten CPA-24-5 (2400hp, 5 axle passenger units with steam generators) in 1951, including the Fairbanks-Morse demonstrator unit. They were not very successful and all of them were out of service by 1961.
Canadian National CPA-16-4
Canadian National 4-axle C-Liner in the original apple green and yellow colors.
Canadian National CPA-16-4
Canadian National 4-axle C-Liner in the red nosed, white striped scheme.
Canadian National CPA-24-5
Canadian National 5-axle C-Liner in the original green and gold scheme.
Canadian National CPA-24-5
Canadian National 5-axle C-Liner in the later black/white/red scheme.