I have a 1919 Singer 66 handcrank that I am trying to put a value on for a charity auction. It has the Lotus declas, green stems and orangish tips, that does come with some accessories. Those include the quilting foot, the ruffler and several others that I have looked at enough to identify. Also included are about 5 bobbins. I paid about $60 for this macghine which is in a bentwood case in nice condition and includes a key. Can someone please help me with a possible value? The charity auction will benefit a low cost spay-neuter clinic. TIA.