Congratulations! What a great find! I have my great-grandmother's White treadle. My Mom learned how to sew on it back in the 20s-30s. You may not be able to find any kind of manual for yours, but I purchased a book "The Complete Guide to Treadle Sewing Machines" by Reuben O. Doyle from Clothilde's website ($24.95). He says he is a sewing machine repairman who has worked on these machines for over 25 years. The book is generic (but the machines are all basically the same) and covers everything from oiling the treadle to changing the belt to adjusting the tension and how to use some of the attachments. I thought it was a good investment.