Here we have 3 of the original frames from  Weaver 'O' scale PS-1 boxcars. These are  plastic components with bolsters and basic brake detail.

These don't usually break or end up lost---so what would you DO with these detailed underframes?

They are  excellent for scratch-building and kit-bashing. Or how about using them to rebuild  dowdy old kit-built railcars OR install on  sparsely detailed rolling stock?  

These will be nice to have on hand for future projects, and "the late" Weaver no longer makes/sells these.

BEST OF ALL---You can order two, OR EVEN THREE of these frame sets---and pay the same shipping as you would for ONE set!