I forged this chain by using heat from the forge fire and hammering round stock around the horn of an anvil.
For the curved pieces at the bottom of the hook, I used heat from the forge fire and hammered the square stock around the horn of an anvil. For the twist in the middle of the hook, I put the heated piece into a vice and twisted it. For the top, I created the angle of the hook by hammering around the corner of an anvil. Finally, I hammered the top to make it thinner.
I forged these functional calipers by creating two separate halves of the same size and shape and combining them together. For each piece, I rounded the ends by hammering rectangular stock around the horn of an anvil and I flattened the ends by hammering on the top of an anvil.