Seal Leather from Leather Entry in the Encyclopaedia Britannica MDCCCLXXXII
reproduced by FZ Fonerize, designers and producers of High Quality Leather Wallet Cases and Flip Card Holders for Apple iPad, iPad Mini iPhone 4, 4S, 5, 5S, 5C & Galaxy S3 and S4
Seal Leather. –The tanning of seal skins is now an important department of the leather industry of the United Kingdom, in which this branch has been specially developed. The skins form one of the items of the whaling industry, which principally centres in Dundee, and at that port, as well as at Hull and Peterhead, they are received in large quantities from the arctic regions. A considerable number are also imported at Greenock from the coast of Newfoundland. The skin of these seals is light but exceedingly close in texture, and yields a very strong tough leather. The skins are prepared, split, and tanned in the same way as other light leathers, tanning with mixed oak bark and sumach usually occupying about six weeks. Seal leather is generally finished on the grain side as “levant” seal with a large coarse grain, and in that form it is principally used by bootmakers. A proportion of seal leather is finished as enamel and japanned leather.