Source
Clarkson, Thoughts on Sewing Frame (1995)
Christopher Clarkson (1995), “Thoughts on Sewing Frame Design for the Book Conservator”, The Paper Conservator, 19, pp. 41–54.
Additional Reference
p. 41
Christopher Clarkson (1995), “Thoughts on Sewing Frame Design for the Book Conservator”, The Paper Conservator, 19, pp. 41–54.
p. 41