What size is Kenmore coldspot 77297790?
It is 22 cubic feet.
Have the instruction book but does not mention so I have the machine and I would say same size as the singer but are metal OK ( bobbin ) Most Kenmore sewing machines (including this one) take class 15 bobbins which you can find at Joann's, Walmart, and most places that deal in sewing machines. They come in either plastic or metal.
The first appearance of the Kenmore brand washing machine almost escaped notice. The Kenmore washing machine did not show up in the venerable Sears catalog that year, and no known photograph of the 1927 washing machine with a Kenmore brand on it exists. The origin of the name Kenmore is equally vague. One suggestion is that Kenmore came from Kenmore Avenue, a prominent street in Chicago. <a href="http://www.searsarchives.com/brands/kenmore.htm">From the Sears Archives</a>