A fine used UR plate 5 strip of 4 of the 1c deep green King George V from the 1930-1931 Arch/Leaf Issue showing a hairline in pos 7-10, die 2. I know this is constant, as I have seen the same hairline on 10 identical plate blocks.
Unitrade does not list this variety, but I estimate the value to be at least $25. Used will be much tougher than mint, as used strips are scarce for this value. The strip offered here grades 65 as follows:
