All About Sharks
Railroad Model Craftsman 1972-05 pg. 34 Scale: (none) Category: "Locomotives - Diesel"
Covers the history of the Baldwin Locomotives Works' DR6-4-2000, a.k.a. "Shark" because of its profile. Lots of prototype photos of both A and B units, mostly PRR. Includes an ownership summary.
Shark Roster
Railroad Model Craftsman 1972-05 pg. 43 Scale: (none) Category: "Locomotives - Diesel"
Breaks down the complete listing of all Baldwin "Sharknose" DR6-4-2000, later relabeled RF16 by the PRR. Includes scale drawings of the A unit.