This may be the same machine.
https://www.ebay.com/itm/White-Sewin...-/264680336021 Perhaps you can get some info from this Ebayer.
These are parts for a White which is who your label said made the Dressmaker. Don't know if any of these might help you.
https://www.ebay.com/b/White-Sewing-...248/bn_7625449
It appears that the White sewing machine company merged with Husqvarna. Perhaps these folks can provide info.
https://ourpastimes.com/age-white-se...s-6736629.html