Nice catch. Indeed it is.
Funny story. My first exposure to them was browsing through an LP rack as a pre-teen in our local K-Mart (of all places) in Grand Forks, ND. As you likely well know the cover to Sunburst Finish is rather risqué and as I was flipping through said records I suddenly saw that, thought what the hell, and looked around in haste to make sure that my mom didn't see me looking at a record cover with a naked woman holding a flaming guitar. Of course, I immediately knew I had to buy it, even though I'd never heard of them, and had to do it quickly before she discovered what I was doing. (She never would've let me buy it if she saw the cover.) I snatched it from the rack, holding it close to my shirt, went to the check-out--*whew* so far so good Mom didn't see me--put it down on the conveyor belt, then looked up to discover to my utter astonishment that the cashier was, of all people, my elderly blue-haired neighbor who lived a couple of houses down from us (I guess she was doing this gig on the side on weekends for extra cash or something). I was positively mortified, blushing red, and knew at that instant, she'd probably tell my mom that her son was buying (nearly) pornographic LPs. Well, too late now. As nonchalantly as I could I tossed a couple packs of gum on top of the record cover and laid a candy bar across it trying hide the naked woman along with a $10 bill, but she wasn't fooled, pushed down her glasses to look me squarely in the eye: "Well, Nicholas," she smirked "this looks like an interesting record."
It remains one of my all-time treasured albums--the guitar solo on "Crying to the Sky" is among my favorite ever--probably in no small part because of how I acquired it. (And said neighbor did indeed rat me out the next week, though Mom, to my utter astonishment, let me keep it as long as I didn't show the cover to my little brother or sister, or my father.) As my avatar indicates I'm a huge fan, and I enjoy a lot of Bill Nelson's solo work too.