So you can pretty much rule out Paiste then. Any chance of seeing what the previous owner covered up?Sorry all for the delay. The lettering on the bottom appears to be applied on with white paint - perhaps over whatever was there that was fading. I cannot find any serial numbers.
I'll give it a cleaning this evening, as recommended, and post up some better pictures.
I think it’s a 22” White Label Ride as shown here:Wish I could help with the model! Maybe you could contact them. You're welcome!
Here is a much more complete reference on serial numbers and years which is vetted against thousands of cymbals in our database.According to Paiste, this would've been made in 1982: