Consider-
The vintage Bernina 830H Record is basically the same design as the Bernina 830 Record Electronic with its universally acclaimed advantages: simple operation, reliability, and high performance. The handicap machine is supplied as a standard model with all essential accessories. The machine can also be easily operated by someone with defective eyesight.
At first glance, it’s a Bernina 830 Record which is cool, but not weird. But, a second glance at the knobs will tell you why it belongs here. This is a Bernina 830H, one of only a few produced. The ‘H’ stands for “handicapped,” which explains the large knobs, with tabs that don’t have to be gripped. It also has a guard for \the needle, and a chain wraps around the pedal so it can hang from the user’s neck. The machine was designed so that a quadriplegic user can operate the pedal with their chin.
Note: "Sewing Machines." The English Journal of the Consumers' Association, Which, Joined with consumer organizations in nine other countries in a report on "electronic" sewing machines As part of this international test, three sewing machines emerged which can be specially adapted for use by disabled people These are:
Bernina 830H (Handicap), Switzerland;
Husqvarna Viking 6270, Sweden, and the
Husqvarna Viking 6690, Sweden
The Bernina came fitted with aids to make it more suitable for people with physical and sight disabilities The Husqvarna machines can be supplied with kits, one for the physically handicapped and a second for the blind and partially sighted. In the report, the point was made that no sewing machine not even one specially adapted will suit everybody The is, try out a variety of sewing machines before buying.