Palestine Mandate.Jerusalem I overprint: 20m slate-gray with 15:14 perf & setting II overprint (Ba 26a), mint & very lightly hinged. With Hebrew "Shin" missing right-most stroke-head, this most similar to Type 6 (except without stroke over E in Palestine). Cat value $750
Palestine Mandate.London II overprint - printing error DOUBLE DISCOVERY PIECE: 13mildeep-ultramarine with 14:14 perf (Ba 79b; plate B issue) a) with mangled design in top right corner extending into upper field ("POSTAGE"), due to broken plate during the printing process; b) with upright crown watermark but BACKWARDS "CA" (note the letter "A" is on the left of the pair in upper-center on back & veers to left rather than to right); used - rare as such (i.e. this variety saw actual use; not a worker's mint fabrication). Est. value $1000+++
Palestine Mandate.London II INVERTED overprint: 2 Pia olive (14:14 perf) with inverted overprint (Ba 81a), MNH (this rare as most unused singles have been hinged); Hoexter certified on back + Muenz certification. Cat value $400