I believe that's an SS90.A Jaguar from the '30's. I don't know the exact model.
SS Cars would later change it's name to Jaguar Cars in 1945, though the SS cars themselves were called "Jaguar" after 1935. Note the car predates the "leaping" hood ornament.
When I was casting about for cars to restore in my youth, I *almost* bought a 1952 Jaguar XK120, which I still think is one of the prettiest cars ever. My uncle dissuaded me, citing Jaguar's (then) notorious reputation for unreliability. I bought the Healey instead. I think the Jag - in dire need of TLC - was priced at $5000 or so, well north of my budget at the time.
I still regret not having a go at it! Attached, a bit of '52 XK porn: