A High Quality 12V dc permanent magnet motor with a separate (optional) 10:1 gearbox. If 12V is applied it takes 0.25A with the gearhead attached and no load. The motor is spec'd at 5000rpm.
These were spares so virtually new. Ideal for that special job !
OD = 27.2mm; length overall (mated to gearhead) = 93mm
Motor length overall = 65mm, body = 51mm (not including connectors) + shaft = 7.5mm (diam = 3.2mm, splined).
Gearhead body length = 27mm; shaft length = 12mm, diam = 4.8mm.
The last photo shows the mechanical interface and where (four) screws would be used. The pack has two screws plus three clamp fittings (thread type lost in history).