Mount Vernon Shops has released decals for PRR class K7, K7A, and K8 stock cars, with an MSRP of $9.00.
The K7 was originally constructed by PRR subsidiary Vandalia in 1913. It was based on the X23 steel-exterior braced boxcar design. 25 K7 were built, which later were absorbed by the PRR. Following the success of this design, the PRR rebuilt the vast majority of its X24 automobile box car fleet into K7A stockcars between 1934 and 1939. A total of just over 1,400 K7A’s were built during this time. In 1924 the Altoona Works constructed 1,000 K8 stockcars to a slightly modified design compared to the K7/7A. In total, this gave the PRR a fleet of nearly 2,500 stock cars until they started to be retired, with the K7 virtually disappearing in 1952 while the remaining K7A/K8 soldiered on until the late-1950’s when they were replaced with the K9 and K11 designs.
This decal set has enough data to complete 3 cars in total, 1 K7 or K7A and 2 K8. Scale codes for Harrisburg (P48), Altoona (P57), Scully (P251), Chicago (P455), Terre Haute, IN (P708), and East St. Louis (P722) have been included with multiple dates ranging from 1929 through to the mid-1950’s.
As for painting, in the Circle Keystone scheme (pre-1954), the entire car, including underbody, is to be painted in Freight Car Color.
For references in regard to the PRR's K7/K7A/K8 fleet, please consult The Keystone, Volume 26, No. 3; the Railway
Prototype Cyclopedia, Vol. 15 and The Postwar Freight Car Fleet by Larry Kline and Ted Culotta, published by the NMRA.