This is an 8½" x 11" reproduction of the original layout drawing for a no. 566-50 Operating Coupler Truck Complete.  It outlines all the part numbers for the sub assemblies as well as the date this drawing was released.  This truck was the mid to late AAR operating coupler that first appeared in late 1961.

Perfect to frame and hang in your train room.

Note:  The actual drawing will not have the Project Roar watermark shown on the picture at left.  A Project Roar authentic hologram is provided to ensure authenticity.