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Tracing, Tracing paper

Made by immersing good quality paper in sulfuric acid for a few seconds. The acid converts some of the cellulose into amyloid form having a gelatinous and impermeable character and translucent quality. When the treated paper is thoroughly washed and dried, the resulting product is much stronger than the original paper. Tracing paper takes it's name from it's ability for an artist to trace an image onto it. When tracing paper is placed onto a picture, the picture is easily viewable through the tracing paper.

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George Pitt
probably after Sir Henry Cheere, 1st Bt
circa 1900 (circa 1738-1741)
NPG D20961

Louise of Savoy, formerly known as Katherine of Aragon
after Jacobus Houbraken, after Hans Holbein the Younger
NPG D24180

King William IV
after a drawing by Sir Francis Leggatt Chantrey
1837, based on a work of 1830
NPG 316a(141)

James Wolfe
by Harold Lee-Dillon, 17th Viscount Dillon, after a drawing attributed to Sir Harvey Smyth, Bt
circa 1860-1884
NPG 713a

Sir George Scharf
by Sir George Scharf
NPG D20912

Mary, Queen of Scots
by Sir George Scharf, after Unknown artist
NPG D20918

Unknown couple, called Robert Carr, Earl of Somerset; Frances, Countess of Somerset
by James Donald Milner, probably after Paul van Somer
1 December 1911
NPG D21673

Thomas Cartwright
by Sir Henry Hake, after Isaac Beckett, after Gilbert Soest
circa 1927-1951
NPG D21670

Somerset Maugham
by Graham Sutherland
NPG 5328

Sir Richard Rogers
by Sir Eduardo Paolozzi
NPG 6022(9)

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