RepairProject Singer Sewing Machine

Machine in good condition, with only one known problem. Has worked well for years. I discovered the issue after not using the machine for many months. This is a Singer 413 made in Scotland circa '71-'78. It was a cabinet mount but that's not available to gift. The machine, bobbins for it, numerous accessories including its original instruction book will all be provided. The problem is that the shaft that drives the machine's lower operations (bobbin/related) is without its gear. Machines of this vintage used plastic gears that have been subject to poor aging, and in the case of this machine,