Prs. Key item of Israel philately - certificate can be obtained on request. 1927-1945 Pictorials colour trial proofs in unissues colours with 'HARRISON's SPECIMEN' opt: 'Dome on the Rock' 4m grey-green (instead of rose-pink), 'Rachel's Tomb' 10m blue (instead of siate) & 'Sea of Galilee' 90m bright blue (instead of bistre). VF fresh MUH. Bale T92, T97 & T101 cat US $4500 for M, so should be at least double,  US$9000 MUH. Only 1 sheet of each existed. 2019 Ceremuga photo certs. (3).