While moving stuff around my parents house, this toy from at least around the 1950's appeared. It is basically a circular baby walker for a doll. the legs (with 4 tiny black wheels) detatch from it like they would on some t.v. trays. Around the edge is an abacus sort of thing made of metal and wood balls (one red, green, yellow and purple ball for each section, which are marked off by 5 metal parts that hold up the metal ring off the walker). On the seat of it, it says "DOLLY-DEN" and "trade mark registered". Seat dangles from four white straps that hook onto small metal loops underneath the walker table. It seems to be made of the same sort of material the old-fashioned brown clipboards are made out of. It's painted a pale baby-pink, w/ pics of a bear, a rabbit, a duck, and a dog (each w/ a baby animal) painted on in pale blue color.The writting on the seat is in the same blue color and another pair of ducks painted above it.If any1 has any info about this, plz let me know.Thanks! : )