SG 250 9d Dull Purple and Ultramarine M39 (1) inter pane positional sheet marginal in fine and fresh unmounted mint condition.

Reverse has some specs of perf tip toning to selvedge perforations with just a single one affecting the actual stamp were it to be separated from the selvedge.

Here of course fully noted as above and priced to reflect, frontally superbly fresh and an excellent stepped head plate shade where the difference between the dull and the slate purples is often blurred at best.