I see a nice 1100 straight grip, likely a 29ga, SP I think it was called. A nice hill country quail gun. If in good working order, likely worth closer to $500-800....
Reminds me of "Mr. Mom" where Michael Keaton is trying to impress a rival and he says he's going to rewire the house. The rival said, "220?" Keaton said, "220. 221. Whatever it takes."
28 gauge were the only shotgun shells on the shelf for about 8 months at Walmart in my neck of the woods.