When was simanco number 33681 Made?

Simanco number 33681 is a part of the Singer sewing machine accessory catalog. While specific production dates for individual Simanco parts are not typically documented, it is generally known that many Simanco parts were manufactured during the mid-20th century, particularly from the 1940s to the 1970s. For precise information, it may be necessary to consult Singer sewing machine manuals or dedicated collector resources.