Model: P12. and is used for lubrication of live steam engine models. Thread: 1/4"" × 40TPI. Material: Brass.
Microcosm M7C Brass Displacement Oiler (Oil Cup)-Lubricating Steam Engine Models
P12 Brass Displacement Lubricator 1/4"x40 TPI for Live Steam Engine
P12 Brass Displacement Lubricator – 1/4 x 40 TPI for Live Steam Engines
P12 Brass Displacement Lubricator Live Steam Models 1/4-40 TPI Thread 3mm Pipe
Microcosm M81 Brass Mini Steam Engine
Microcosm P60 Brass Flyball Governor for Steam Engines with 1/4-40 TPI Thread