These are the “you lose some” from a roll of Fomapan 200 exposed with a Nikon FM2.
What happened here is that I opened the camera back with the window of the Shirley Wellard film cassette still open. The winding lever was sticking every few frames, and so I rewound the film and opened the back of the camera to check what was wrong without first closing the window. A moment passed as I stared at the exposed film through the gap, wondering why I was seeing film when I wasn’t supposed to. It was unfortunate for these two frames, which were at the beginning of the roll and, therefore, most affected.
I don’t know what was wrong with the winding, and I have yet to test the Nikon FM2 with a normal factory cassette. Still, the rest of the roll was okay and these three pictures were the “you win some”.