About 12 years ago there was a gun buy back in Rockford Illinois in front of the Winnebago County Courthouse, which also houses the Public Safety Building. The front page color photograph of The Register Star had a photograph that prominently displayed a broken Daisy spring action pellet gun vaguely shaped like a 1911 colt. I had one of them when I was kid. There also was a co2 cylinder powered revolver shaped pellet gun. The CO2 cylinder locking screw at the center of the bottom of the grip was in plain sight. It looked like a Smith and Wesson model 29 (the Dirty Harry gun), but the cylinder (where the bullets are held) was a part of the frame. In front of the faux cylinder was a narrow ring (maybe 3/8", 1/4" front to back). I later found out that holds 8 .177 cal pellets.
Because I now look carefully, I have seen other examples of this and similar....camoflauge. One photo of an "arsenal" had two single shot .22 cal savage rifles, and what looked like a broken 12ga single shot shotgun. It may have been Randy Weavers stash, I'm not sure.
I just went over my posts on this issue. I did not say the Police uttered lies. I did insinuate that Police officers would follow the orders given them, up to and including not making an issue in front of the press, if a person in line turned in something which could no longer or never was able to fire a bullet. A gun buy back is a public relations event, the powers that be want to show a good image.
As far as any qualifications I hold as an expert on firearms. I have none. Nor have I ever heard of a college course in recognizing commercially produce domestic handguns. My only qual is I've been firing guns since late October of 1969, when I was 10. I've pulled a lot of triggers.