Around here they were used to pull a long line of logs. The large loop would be attached to oxen or horses. Shorter chains with hooks on both ends and a swivel in the middle would connect 10-12 logs to be pulled out. That is a great looking chain. I have never found one with curled hooks on it, but it would be for quick hook-up with the loop of another chain.
Nice I.d. lubercamp! I've never run across those hooks either, and that's including many years of scrapping and searching the yards for any interesting chain. Those hooks are ingeniously simple. Great find Countrygirl, and pretty too!
Me a logger. Nah. It's just that I have been digging lumber camps for years and have a good idea what the old logging tools are. If I don't know I post a photo on Tnet to have other people help ID it.