My great, great uncle Robert F. McKee, Sr., was a design engineer at Baldwin and he would give my father different Baldwin Locomotive Works builder's cards when my father would visit him in Collingswood, New Jersey. Here is the 2-6-6-2 built for the Baltimore & Ohio Railroad, a KK-2 number 7450. According to the specifications listed on the back of the builder's card, this single expansion articulated locomotive had in working order, a total engine and tender weight of 739,000 lbs., and it had a tractive force of 90,000 lbs. This Baldwin Locomotive Works builders photo card is from the John R. Doughty collection.
Dedicated to my father, John R. Doughty, Sr., and to his great uncle, Robert F. McKee, Sr., who worked at the Baldwin Locomotive Works as a senior design engineer, including working on the design for the Duluth, Missabe & Iron Range 2-8-8-4 Yellowstones