Spence, there are those who have no interest in any sort of historical accuracy, and those that do. Frankly, I'd rather be told something may be inappropriate for a particualr time period, as it may keep me from wasting money on something that'll be useless on down the road.
That said, in response to the original question----the folding handle skillet from Crazy Crow (India) is a good one, with a decent hinge, and a very good pan. It will serve you well. I have one, but being one of those evil anal retentive stitch counters, I removed the hinge and handle, and forged up a straight handle with a loop on one end for mine. I utilized the two rivet holes in the pan to attach the handle, and presto---a nice, correct frying pan that'll pass any muster. If, however, you've got your heart set on a folding handle, then that is one I'll recommend.
Rod