Oh my that's a beautiful machine. Joey likie!!!! Joey want's one too.
Yes, it's an HA-1 15 Clone. They are quite simple to operate.
The only thing is they need to be threaded properly and that's not too hard either.
The feed dogs drop with the round nob by the pillar so you can darn or monogram or what is that .. FMQ? ... if you want.
The machine has forward, 6 to 30 stitches per inch with reverse.
Just oil her up and treadle away.
There is a generic manual available but for the life of me I don't have a link to it.
Joe