Slavia 624
Was a low priced yet quite accurate pellet rifle produced in the 1970s. I had one when I was a kid (paid $16 new) then upgraded to the Slavia 620 (paid $20 new). The 624 had a muzzle velocity under 500 ft/sec; the 620 about 550 ft/sec.
I shot a bunch of starlings with the 624.