unused 1906 (Watermark IV) perf. 15 and 1908 (Watermark V) Turul 2K. blue, the key value to both sets; both are fresh mint, the latter with sheet margin at foot

細節
unused 1906 (Watermark IV) perf. 15 and 1908 (Watermark V) Turul 2K. blue, the key value to both sets; both are fresh mint, the latter with sheet margin at foot