Marquis stamp book vendor   The Marquis ,available in both electrical and battery versions vends a Royal Mail vending booklet valued at either £1 or alternatively at £2. Because the Post Office alter the value of stamps in the booklet each time the price of stamps changes you coin input always remains the same. You can convert the machines from £1 to £2 booklets and visa-versa. Holding 200 booklets the workings of the Marquis electrical version are the same as in machines we are currently supplying the Post Office. The Battery version allows you to site the machine where most convenient. On test battery packs have lasted 85000 vends.