frame line

“I was back on the frame line. I had to ground a radio strap to a firewall, and tighten a brass nut on an air conditioning unit. It was torture to go back.”

Passing now from these varieties dependent upon the nearness of the lines and corner blocks the following more interesting variations may be found: With the upper left corners too far from the blocks, the others being ordinary; there is an extra line outside the frame line and close to it, at the right, g1 f2 3 4 k2.

Numerous specimens showing the frame line broken, those with it perfect are much rarer, g1 f2 3 4 m2.

With the frame line thin, often broken, and the extra line heavy and further off.

With the upper left corner too far from the block, the lower left corner too near to the block, an extra line outside the frame line and close to it, g1 f2 h3 f4 k2.