ASF A-3 100 Ton truck with (non-rotating) roller bearings.  This truck was very common in the 1960s, particularly on covered hoppers and tank cars.  As far as we can tell, this particular sideframe shape has not been offered until now.  HO scale.

Package contents: (1) pair of ready-to-run trucks with semi-scale (code 88) nickel silver wheelsets and brake detail.