The wool needed to tie Sawyers Killer Bug.I have managed to find a yarn virtually identical in texture to the now rare Chadwick's 477. With the use of a few dyes I have managed to get that brown,grey with a pinkish blush colour that you get from 477.In the picture the original Chadwicks is on the right and Lathkill's substitute is on the left. I am selling it on a card in 6 yard lengths.