Jeckyll & Co has dated this piece to the Regency era.
There are 14 designs in all and the leather bound volume is stamped simply T.D. A likely maker is Thomas Draper, listed in Thomas Sheraton's 'Cabinet Dictionary' of 1803.

These references are taken from John Boram's excellent piece 'Makers of Dy'd, Fancy and Painted Chairs' Regional Furniture Journal Vol. 24, 2010.
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Jeckyll & Co has dated this piece to the Regency era.
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