Turkey: 1917 unissued Mount Sinai commemorative issue working proofs stuck on thick archive paper. Numbers 1 and 2 designs are photographic proofs never printed; no. 3 on issued colour but value 5pi; no. 4 unissued colour; no 5 unissued colour of 20pa but value 25pi and additional tablets inserted as was in the case of no.6. ex. Austrian K.K. Staatsdruckerei archive.
