William Thomson, Baron Kelvin, probably after John Fergus, 1870s - NPG D40446 - © National Portrait Gallery, London

© National Portrait Gallery, London

William Thomson, Baron Kelvin

probably after John Fergus
lithograph, 1870s
18 1/2 in. x 14 1/4 in. (471 mm x 361 mm) paper size
Purchased, 1966
NPG D40446

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