found these old farm UFO photos in a box, are they THE famous ones? rec needed

Helping clear out my late grandfather's place and there's a manila folder of clipped magazine pages, and two B&W photos of a little disc thing over a barn/farm, kind of a hubcap-on-a-string look but honestly really crisp. One has a name penciled on the back, 'Trent.' Grandpa was a Life magazine hoar……