Proof 1922 Thom overprint proofs in black, five-line type, a complete row of twelve being the matrix setting, position 3 showing "heireanntt" and position 4 "theireann" varieties, also a pair from the matrix (positions 1 and 2), on wove paper or card; some creases or folds yet fine. Also a block of four from the plate proof setting on rough paper (faults) for comparison. Very rare