Turkey, Bradbury Wilkinson unfinished trial proofs (2), one has the value of 5, (5 livres Pick62 for type), the other has a value of 10 in Roman & Arabic, possibly an unadopted design which needs verifying, circa 1907, printers annotations in pencil, both stuck to thin paper from a book page, one on each side.
Estimate: 180-350 GBP