GB 1901 SGO19s Official "SPECIMEN" type 15 block of four
Stock Code: P201005734
1901 1s Green & carmine (I.R. Official). Superb unused o.g. block of four (Bottom pair unmounted o.g.) overprinted "SPECIMEN" type 15. A magnificent multiple of this difficult departmental specimen. Spec. L17s. Ex Michael Astley Collection.
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