WIChix, The puzzle boxes are so cool! I've seen a number of them for sale. Man, the prices vary and not just for the condition or the contents either. Some of the prices are ridiculous.
If I understand correctly, certain numbered kits were made to go with certain type of machine? Even though the majority of the machines are low shank and use the same foot.
I did see one box, looks in beautiful condition, not complete, but close. Has a thumb indent, so a later one. $50.00. I can't, but it's so cool!
You all are my support group. You support this new addiction! Haha