细节
cover 5Kr. red stationery envelope (opened-out for display) being a registered express letter to Pest (30.11 arrival c.d.s.) additionally bearing 5Kr. red (5, two applied to reverse) and all cancelled by "GYULA" c.d.s., front showing two strikes of "SZORGALOMLEVÉL" h.s. applied crosswise. A rare combination of which only a few are known. Photo
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Illustrated on Page 111 of the Handbook.