Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 430
ches; this, in addition to the lengthobtained for the 13 feet, will give the full length of the long valley n m.The length of the short valley a c, as shown, extends over therun of 10 feet 4 inches, and butts against the side of the long valley at c.By taking 17 on blade and 9 on tongue, and…
Architecture · Building · Carpentry
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