book drawing of grit grain sizesPosted By Gary Fick |
Bob,
I think you may be referring to a drawing by Russell Porter in ATM vol. 1(pg 352 of my copy). It has a diagram of the time to polish pits of different grain sizes, and in one conrner is a tombstone with the inscription "Here lies a T.N. who died of old age while trying to polish out No. 60 pits with rouge".
Gary Fick
I think you may be referring to a drawing by Russell Porter in ATM vol. 1(pg 352 of my copy). It has a diagram of the time to polish pits of different grain sizes, and in one conrner is a tombstone with the inscription "Here lies a T.N. who died of old age while trying to polish out No. 60 pits with rouge".
Gary Fick
