Was checking out the Davis machines on CL and spotted this interesting ad with sales receipts:
http://visalia.craigslist.org/atq/4862943378.html
Note reads: " Please send sample needle back as it is a hard job to get needles to fit my machine. Respectfully"
Looks like a sales order form for Sears with inexpensive items listed. The machine uses a Davis Long needle. Machine probably dates to 00's.
Well used needles must have been pretty dear to want the sample back!
Jon