If that is the complete serial number it was made in 1910. The serial numbers that start with G can be a problem for accurately finding the correct time from and from my own experience can have the wrong info. Sometimes it is because a number is omitted and just look at the 6 digit numbers and not the 7 digit numbers. Plus they started the numbering again with 7 digits, but a 0 in front of the other 6 digits.
As quiltedsunshine said, treadling takes practice.
I had tried treadling when I was younger and decided it wasn't for me. Then my brother and I refurbished the treadle my sister learned to sew on. She was so appreciative and would tell me how much she enjoyed sewing on the treadle. I finally gave it another try. It really is fun.
I will PM you, too. Here are some threads/posts, sites and videos about treadling.
I need help!
How to start treadling in the right direction
https://www.treadleon.net/sewingmach...totreadle.html
https://www.treadleon.net/sewingmach...eadlebelt.html
https://www.helenhowes-sewingmachine...totreadle.html
https://www.youtube.com/watch?v=lXEoZIBserE
https://www.youtube.com/watch?v=d8IUBJry6Ro
Janey - Neat people never make the exciting discoveries I do.
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