This is a Proto 2000 21571 HO AT&SF PB Non-Powered B Unit Diesel Locomotive #73A. It features working diaphragm… This item has been graded per TCA standards C-8: Like New. This item appears to have been run sparingly, and displays overall signs of very light previous use. The original paint is in great shape, and the rest of the unit displays a like-new overall finish. The instruction manual is included. The original box is included. Photos from a previous listing have been used to show this item outside of the box. Overall condition is Like New. Availability: Ships within 1 Business Day! Trainz Product Id: 11620955.