Facebook Page
Engine 10

Rahway Valley Railroad #10

Type: 0-6-0 Switcher
Builder: PRR-Altoona Machine Shops
Construction #: 1948
Year Built: 06/1895
Drivers: 50"
Cylinders: 19" x 24"
Notes: Ex-Pennsylvania RR #396, Class B-4a
Purchased 02/1918
Retired 1922
Sold to General Equipment Co. 1920's
Sold to Jefferson Construction Co., New Orleans, LA #10
Sold to Seaboard Air Line #123
Retired 05/1930


Engine 10 at Kenilworth.
Collection of Thomas T. Taber, III


The Rahway Valley's #10 was an ex-Pennsylvania Railroad (PRR) switcher that was built by the PRR's  Altoona Machine Shop (AMS) in Altoona, PA in June of 1895 (C/N #1948). Originally a member of the PRR's Class M it was subsequently reclassified into the PRR's Class B4a.While on the PRR it served with the road number #396.The Rahway Valley Railroad purchased this locomotive in February of 1918.

#10, along with #9, was sold to the General Equipment Company in the 1920's.General Equipment in turn sold the locomotive to the Jefferson Construction Company of New Orleans, LA who kept the engine numbered #10.The engine subsequently was acquired by the Seaboard Air Line who renumbered the engine as their #123. The engine was retired in May of 1930.


Repair voucher for the inspecting, washing, and boiler repair work on #9 and 10, directed to William Gerhart. The amount came to $87.12. Dated 5/5/1921. Collection of Don Maxton.  

A Builder's Photo of a PRR B4a.

A Pennsylvania Railroad Class B4a, a sister unit to RVRR #10
Collection of Bill Waller.



  • Seaboard Air Line Railway: Steam Boats, Locomotives, and History by Richard E. Prince, (c) 1966, p.189
  • Thomas T. Taber, III
  • Roster Information provided by Allen Stanley of Railroad Data Exchange, courtesy of Michael Kaplonski.
  • Altoona Machine Shops Records

Head Back to the Station!