Technically ,this would be a Great Britain Book Post cut-out. As you see in the scan below, your cut-out is as
nigelc identifies. Originally BOOK POST then PRINTED PAPERS after 1916, these were reasonably well collected as cut-outs if you go by the prices mentioned in the scan of a page from an old Bright and Sons catalogue. Most modern calalogues rarely include these items and they are somewhat forgotten.
