I'm late to the party...
I have been completely out of 18th century for years now. I need to get back in. One of the first things I need to do is construct a good rucksack.
I have looked and looked, trying to find good 18th century German images of rucksacks (two-strap backpacks), and have found some...none of them really good. The classic German/European rucksack is a big drawstring bag with two shoulder straps. These go back at least to late medieval times, and continue in use to this day (modernized, of course, but still essentially the same). However, I still cannot find one single 18th century German image of one. Regardless, this is what I intend to make for myself (I wish I could justify a frame... :grin: ). There is a fairly well-known 18th century French image showing one, but since the recent Photobucket BS, I can't post it here very easily. Wait, here, I found one I can post:
I do have one or two 18th century German images of very nondescript LARGE square-ish two-strap backpacks. Can't tell much with them, unfortunately.
What I do see, in HUGE numbers, are snapsacks. Everywhere. Men, women, and children with snapsacks. I've made a couple snapsacks, and I like them, BUT, I have decided that they're just not for me. After a while, they hurt me. The single strap presses on a certain spot on my shoulder, I guess it presses a nerve, and I will get quite sore from it. So, I'm back to two-strap packs (the straps ride on a different spot on my shoulders, so no nerve soreness).
What I have NOT ever seen in any 18th century German images are "wallets" (which is called "Quersack" in German. I have seen these from much later, but not 18th century), or any kind of haversack-like shoulder bag (civilian, anyway, and I don't really recall any military either, but that's not ever been my focus). I have also seen what is basically a double snapsack (one front, one back) with drawstring closures at the top, and attached together at the bottom (these are also called a "quersack", which is probably a pretty generic term).