I love the tone of the instruction-'Thread cotton Thus'-I can imagine it being spoken in a clipped and refined(refained) 1950s accent! I did thread cotton thus and it worked like a dream!
It is a machine with no bobbin-how it works is a mystery to me but it produces chain stitch. It is a bit hit and miss, and does not really like to join two layers of fabric together, but I can see embroidery possibilities. I have a small collection of old cotton threads which are just right for this machine and are in a lovely selection of colours.