A true survivor, SP 3050 built in 1897 as Ontanta II for use by Henry Huntington, sold to Southern Pacific in 1922 and rebuilt with steel vestibules into a combine configuration while retaining its wood sheathing and orginal underframe. Transfered to New Mexico branch line service in 1955 it was refitted with 4 axle trucks and given the then current two-tone-grey paint scheme, the only such example on a wood sheathed car, its was retired in 1962 becoming the last such example in revenue service on the SP.
There truly is a prototype for everthing!
Dave