Thank you all so much for the comments and amazing info. I've learned even more than I did just trying to do research on my own.
Sadly, that first 115 was sold while I was at work yesterday but something else has come up...
One which even in my amateur opinion looks to be in amazing shape. A 27 from March 1927 according to ISMACS and the serial (G304778). The person selling it says she only ever had it for decoration but always tried to keep it clean and seems to think it runs. She says the wood is all fine and that one drawer has a bunch of little accessories. No telling if one of the accessories is the other slide plate that is missing in the photos.
Overall photo:
https://postimg.cc/jLBgFgnL
Machine closeup:
https://postimg.cc/62Qf3n4k
Treadle:
https://postimg.cc/rDC1NQ16
Back:
https://postimg.cc/mPRMkC0m
The problem with this is that it's 2 hours away, we'd have to rent a car to go get it. And I'm not sure how to disassemble them. But am I right in thinking it would be worth the effort?
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The other going by ISMACS and Singer's list is a 15 from 1913 (G2856200), but going by Sandman-Collectibles is a 66. So, no clue, I'd need help with that. What I don't understand is if the wood looks like it does because someone took a shot at varnishing it at some point or if that's original. There appear to be excess varnish marks in parts..., but going by Sandman-Collectibles is a 66. So, no clue. I'd need help with that. What I don't understand is if the wood looks like it does because someone took a shot at varnishing it at some point or if that's original. There appear to be excess varnish marks in parts...
Overall photo:
https://postimg.cc/8706H970
Possible excess varnish?:
https://postimg.cc/mhs8C1fF
Base of machine:
https://postimg.cc/Lqv6DZQ6
Treadle:
https://postimg.cc/SJm1F2gp
Drawer apparently full of original accessories:
https://postimg.cc/6y5sVmJR
This one is far easier to get to, still requires renting a car, looks in great shape on the wood side but is clearly more worn on the machine side. Decals almost worn out, lots of pitting. This church thrift shop received it and wants to sell it so there's not much info on its past.
The first machine is cheaper, neither person really knows much about them. Thoughts, questions I can ask, opinions on what they are and what kind of condition they're in, are either of them worth buying? (We're leaning heavily towards the Sphinx because of its condition despite being hard to get to.)
Thank you for ANY help!! I
promise I'll stop asking after this.