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Vintage Sewing Machine Shop.....Come on in and sit a spell
purplefiend had a small one in the back of her 115 and Bennett evidently has had experience in that respect. I was thinking a metal spiral brush, but I don't think I've seen any in a size that would do any good. The metal brushes I have probably wouldn't get very far in the pillar. Bennett's suggestion was a bottle brush.
We like pictures.
Good luck. Sounds like a neat machine worth saving.
Janey - Neat people never make the exciting discoveries I do.