They are really good pictures.... Some of the trucks seem to have come apart. Strange, but maybe that is more normal than I would suppose.
Unlike the N scale truck's 1-piece moldings of the bolster and sideframes, the 1:1 trucks are made from separate parts. You bang them hard enough and they'll come apart!
Actually, some of the H0 and larger scale trucks (usually sprung) have separate sideframes and bolster, similar in design to the 1:1 trucks..