Hi there the ones i have is made in the late 1950's.a friend of mine where ive got my columbus that can convert to a vacuum cleaner has got a few of these,he knows the history more accurately than me.if i may ask from where did u bought this one?as it almost looks the same as the one of my friend in jhb?i know he said the original bags were bigger than the ones who could only polish and there wasnt a columbus mark on the bag.we have a garage in leeudoringstad with stuff my great grandfather had in his shop,theres a columbus polisher that has never been used its in excellent condition.theres also a polisher,as i was told it could convert to a vacuum cleaner and you put the wax somewhere in the head where it applies the wax itself and buffing the floors.i would so like to have all the vintage cleaners thats inside that building,but unfortunately they dont whant me to have it all.