(Mind the terrible photos)

It's a Panasonic Model 70 SL-504

I'm pretty new to the more "technical" aspects of turntables, so forgive me if I sound like it lol

Got the turntable and Stereo system secondhand off Facebook marketplace for only 75$ last year, partly because it was installed an old hand crank cabinet from the 1920s. 

Most of what I use it for tends towards more random/obscure stuff you'd find in a thrift store, but when I listen to albums I'm super familiar with, I've noticed that it plays a bit too fast, just enough to be noticeable (I've tested it against recordings on my phone and it's definitely not just a sound issue-- I also have some musical experience and have become fairly sensitive to these things.) Finally got a copy of Springsteen's Greetings from Asbury Park N.J, and listening to it on my turntable finally bothered me into searching lol.

The most I've been able to find online has been \~2 listings on different websites selling the turntable, one of which seems less than reliable. But no manuals. So I've come to assume this model may be a more obscure/rare one.

Looking for a user manual for the turntable to troubleshoot, I also saw online that some have the ability to do speed adjustments but have no idea where it may be located on this machine. 

To be honest, I don't know very much about technicals with these things, and this is the first nice system I have and would love any advice on the issue outside of a manual as well :)

Need help finding a manual/or advice for an obscure (?) 1970s turntable!