James Valentine’s Anti-Slavery Envelope ‘God Hath Made Of One Blood All Nations Of Men’ Circa 1850s - Detailed illustration of kneeling African slave being protected by Britannia on left. A slave being whipped in tropical setting and slave ship in background on right. Engraved and published by J. Valentine, Dundee. Johnstone & Hunter Edinburgh & London printed bottom left. Ackermann & Co., London, printed bottom right. Size 5¼” × 3”.