Certainly looks like a later 90/92. Has the Model R wringer head with the red safety button - but more importantly, it actually appears to have the original RARE sand-casted pump on it. Pricey, but cool. Too bad those hoses are impossible to get now.
There are lots of antique opportunities here in Wytheville. We have about 5 or 6 shops. From really great high end antiques to newer stuff. I have no idea who the seller is, but it's not me. Mark Lightedcontrols