It has a base with a mounting screw and slide-in connection

Here is a Lionel 6-19246 O Gauge Walt Disney World 20th Anniversary Hi Cube Boxcar #19246 from 1992

This is a Walthers 933-3880 N Bridge Pier Kit (Pack of 2)

Model Number: 80128

This is a Bachmann Spectrum 25662 On30 Scale Colorado Mining Co

Lionel 6-25639 O Gauge PRR "The Red Arrow" Heavyweight Diner Car ProductID_12472937 It has a base withHere is a Lionel 6 25639 O Gauge PRR "The Red Arrow" Heavyweight Diner Car. This car features diecast metal 6 wheel sprung trucks, operating couplers, illuminated interior light with figures, and metal wheels and axles. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Lionel Model Number: 6 25639 Road Name: Pennsylvania Railroad (PRR) MSRP: $149. 99 Scale Era: O Modern Model Type: Passenger Cars The