Baldwin VO-100/DS 4-4-1000: #135 thru #140: had Wabco B-6 or A-6 (horn A) mounted centerline of hood in front of cab just behind the exhaust stack. #141: had two Leslie A-200’s (horn B): one pointed forward and the other pointed backward. The front horn was mounted the same as on other Baldwin switchers, and the rear horn was mounted on the cab roof centerline, center of cab with a metal strap holding up the front part of the horn. #142 thru #147: Wabco B-6 or A-6 (horn A was mounted the same as on the #135. #148: had a Leslie A-200 (horn B) just like on other Baldwins. Photo dated 5-49.
Baldwin Road DRS4-4-1500: #200: had two horns, one a Nathan M-3 (horn F) which was mounted on a rectangular shaped bracket on the short hood engineer’s side behind the cab pointing forward, and the rear horn was a Wabco B-6 or A-6 (horn A) mounted on the short hood firemen’s side next to cab.
Baldwin S-12: #230 had a Nathan M-3 R1 (horn G). #231 thru #233, #235 thru #238, #240 and #241: all had a Leslie A-200 (horn B) on them. #234 had a Wabco E-2 (horn L). #235 in a photo dated 8-72, shows a Nathan M-3 R1 (horn G). #239, #242 and #243: had Wabco B-6 or A-6 (horn A).