Hi everyone. I am new to the board and use it to help my grandmother out with her quilting fun however she's not good with computers. So I bought a machine at an estate sale recently and would like to give it to her at an upcoming holiday. It is a 1927 model 99 one of the portable case ones. I was able to get everything cleaned and working except one thing. I am looking for the detachable knee bar for the machine. The knee bar is the type with the circular end to it is not the flat bar type. I know these are ahrd to find. If anyone can help me out in finding one and selling it to me for a fair price Id appreiate it. Thanks.