Amateur mechanics ... a book for old and young who like to make things .. (1907)
Popular mechanics magazine, Chicago. [from old catalog] · Chicago, Popular mechanics · leaf 44
n H - • : -:-• IN G r or1 … Making a Mold 42 POPULAR MECHANICS up <>r spreads after il is poured, itshows thai the mold has been rammedinn little, and if the surface of thesand next to the pattern lb cracked it • hal the mold has been rammed■ I. It will be found thai the mold can Btand a littlemore ramming than th«…
Handicraft · Amusements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
