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Postcard depiction of an Alco HH1 locomotive of the Pennsylvania Railroad. This was the only HH1 owned by the railroad, built in 1911 and scrapped in 1928.

Pennsylvania Railroad class HH1s Articulated 2-8-8-2 Steam Locomotive
The Pennsylvania Railroad's class HH1s comprised a single 2-8-8-2 type steam locomotive. Unlike most Pennsylvania Railroad steam locomotives, it had a wagon-top boiler. It was built by the American Locomotive Company (ALCO) in 1911. For 17 years, the single HH1s served as a helper until 1928. It had the road number 3396 and was subsequently scrapped after it was taken out of service in 1928.

HH1s Class Overview
Type and origin
Power type: Steam
Builder: ALCO
Build date: 1911
Specifications
Configuration:
​ • Whyte 2-8-8-2
Gauge: 4 ft 8 1⁄2 in (1,435 mm)
Firebox type: wagon-top
Career
Operator: Pennsylvania Railroad
Class: HH1s
Road Number: 3396
Retired: 1928
Disposition: scrapped

See also:

PRR Locomotive Classes

Pennsylvania Railroad

2-8-8-2 Locomotives

Steam Locomotives

Locomotives

Postcard depiction of an Alco HH1 locomotive of the Pennsylvania Railroad. This was the only HH1 owned by the railroad, built in 1911 and scrapped in 1928.