Bending flange on the lid
Lid: Take the 4 × 4-in. piece. Cut a 4-in. circle. Place the bowl upside down upon this disc, draw with a pencil all around the rim on this copper plate. This marks the diameter of the rim on the plate, also the line where the copper should be bent to form the lid to fit the rim.
With the anvil stake in the vise, place the disc against the sharp end of the stake, with the line on the edge. Drive with the raising hammer against the part projecting above the stake. Turn the disc, keeping the circle line on the sharp edge of the stake. Repeat this till the sides are at right angles to the top. Place the lid upside down on a wooden block, drive on the inside, shaping it like the drawing. Make it fit the rim, trim off the rough edges, file up smooth, and polish.
Do not forget constant annealing, for you know hammering always makes the metal hard.
CHALICE
Material: 3 pieces of copper, 6 × 6 ins., No. 20. One piece of round rod copper, 1 in. long. One piece of copper, 12 × 1⁄4 ins. (for rim). Solder.
Tools: Hard wood block, round head and anvil stakes, combination stake, shears, dividers, planishing hammer, raising hammer, and shaping hammer, files, emery cloth.