Lionel Pennsylvania Railroad Work Caboose, specifically model # 6-36589 

Features: It includes interior illumination and operating couplers for automatic uncoupling. 

Specifications: Designed for Traditional O Gauge tracks with a minimum curve of O-27, and it measures 8 3/8 inches in length.

    These are old stock; these are all new in the box. Note: I’m on EST, more to come.

Thanks