Hi there. Trying to find a manual, parts list, or historical information about this floor scrubber. I have searched through Sears parts-direct online but cannot find this model, ditto for several online manual websites. Based on the color and childhood memories of its use, guessing it was made in the late 1950's or early 1960's. I'd sure like any information anyone can share about this product ...... Thanks for helping! For what is worth, serial number for the unit is 404237.