Yep, remember those well. When we moved here in 1979, there was a local store that used wire baskets traveling by overhead wires to a central cashier's station on the mezzanine level. Clerk put the bill and your money in a basket and dispatched it and few minutes later your receipt and change came back. Not too long after that 9by mid-80s) that was dismantled and went in storage, and cash registers appeared on the sales floor. oh well.Well remember the Department stores had 'them' vacuum systems going from the sales counters to a central cashier, receipt and any change came by the return pipe.