Talk:1974 Track Sets

hi, i'm new to this site, but i have found some very elusive info on on very rare track set from 1974 here.. it involve ther RoadKing mining set, that wa put out that year..

i would appretiate any, and all assisstance in getting info, and possibly pics of this set..

believe it,or not, it has taken me ten years,or better, to find some concrete evidence of its exhistaance, so anynce.. so,any info would really help my sleeping patterns.. thanks!