This section is from the book "Wood-Block Printing", by F. Morley Fletcher. Also available from Amazon: Wood-Block Printing.
Japanese printing brushes are sold by some artists' colour dealers, but these are not essential, nor have they any practical superiority over well-made Western brushes.

Fig. 20. - Drawing Of Brushes
An excellent type of brush is that made of black Siberian bear hair for fine varnishing. These can be had from good brush-makers with the hair fixed so that it will stand soaking in water. Drawings of the type of brush are given above.
Three or four are sufficient; one broad brush, about three inches, for large spaces, one two-inch, and two one-inch, will do nearly all that is needed. Occasionally a smaller brush may be of use.
 
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