Antique Sliding Barn Door Tracks w Wheels Rustic Farm Hardware 1900s

Description

Nice pair of antique barn door hardware slides made to fit on a track.  They are rusty but the wheels turn.  On the end there are large bolts that need a little WD-40 but should turn ok.  The wheels appear to be old hard rubber or composite material.  Found in a large box of doorknobs from the 1890s era.
Please see photos for sizes.  Wheels approx 2″ diameter.
On Aug-08-21 at 08:27:45 PDT, seller added the following information:
Note:  a third one was found after listing and will be included in the lot.  Thank you