Thank you Eugene for the confirmation.
My copy of the 1890 NY State Railroad Commissioners' Report (a reference I should have checked earlier!) lists 12 sets of "transfer trucks" among the rolling stock of the SC&CM. Each pair of trucks was valued at $285.35, which sounds like a lot of money for 1890.
Other SC&CM rolling stock reported in 1890 included 7 first-class passenger cars, 2 baggage mail and express cars, 2 box cars, 7 flats, and 5 "service cars" (whatever those might have been). The passenger cars were fitted with Westinghouse air brakes and Miller hook couplers, but the freight cars had hand brakes and link-and-pin couplers. There were 2 locomotives, both 28 tons, valued at $13,365.12 each.
The rail was steel, 42 pounds per yard, with split switches and spring frogs used on turnouts. There were 5 bridges and trestles reported, all wooden, with an aggregate length of 561 feet.
-Philip Marshall