The collection contains fifteen coloured and black and white ink and pencil drawings of fish and their environments, made by the artist George Sheringham (1884-1937). These are marked with plate numbers referencing their use in 'The Book of the Flyrod'.
The series of illustrations includes three unidentified fish for plate VI (MS 231/1); a Perch for plate VII (MS 231/2); a Chubb for plate VIII (MS 231/3); a Salmon for plate X1, opposite page 171 (MS 231/4); a Trout for heading to chapter XIV, page 145 (MS 231/5); a Dace for heading to chapter XIII, page 129 (MS 231/6); a Trout (MS 231/7); a Sea Devil for heading to Chapter XI, page 109 (MS 231/8); an unidentified fish for page 31 (MS 231/9); a lake scene for the head to chapter 10, page 99 (MS 231/10); a bag for the tailpiece at the end of chapter IV, page 39 (MS 231/11); a fish in a tank for illustrating page 43 (MS 231/12); two unidentified fish for the tailpiece of chapter VII, page 76 (MS 231/13); a weir for the heading to chapter XII, page 121 (MS 231/14); and an open book for a bookplate as the title page plate (MS 231/15).