We have SP flat #255 at the NCNGRR museum. We also have the parts for #233 which was later a gondola and is scheduled for restoration late 2017. Both these cars ended up at Universal Studios around 1955 along with SPNG box car #26. Flat 255 was converted into a coach and 233 was made into a mailbag car for the studio train. There were two other pairs of SPNG trucks of the same type there but we only recovered one pair since we didn't have anymore room for more on that particular trip. That pair went under SPNG box car 130 during its restoration at the museum.