The trick I use to tell that is the last thread guide before you thread the needle. It will always pull the thread toward the side the needle threads from. Thanks for mentioning that! I will put it in my notes.
Mmmm,... samples! I will try to bond with some of those attachments. Some of them are quite character building at first.
Yes, I would definitely have to touch on the postwar Japanese sewing machine history.
I plan on taking a clone, a 15, a featherweight, a lovely German machine (Winselmann) with me... are there others I should take? I am also going to be doing a half day class on some maintenance with some of the ladies, so I plan to take a motor that is disassembled, my "tool kit", etc. I'm wondering about other visuals, as well.