Antique Copper Chain (Copper Ox Chain) #2: Long-and-Short Square Wire Twist Chain is a copper-plated chain with two large twisted links followed by a smaller twisted link.

Larger links measure 5 x 7mm, in rather a diamond shape as seen from the side. The smaller twisted links measure 2.5 x 7mm long.

You get approximately 3-1/3 large links and one small link per inch.

Chain construction is antique copper plate over brass.

Antique Copper Chain (Copper Ox Chain) #2: Long-and-Short Square Wire Twist Chain sells per foot.