Help! Dark bands across my picture edges

If you use a Paterson tank, I advise to wind a rubber band around the center column, just by the top of the reel. This prevents the reel from sliding up the column.

I don't know if it's resolved or not, but a light leak would result in lighter tonality since more light exposure would have occurred on the edge of the film. Since you have darker tones along the edges, you got LESS negative density, you have underdevelopment, therefore it's certain it was a processing error.

Adam W said:

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A couple months ago I found an exposed roll of 120 while spelunking in the abandoned Oceana darkroom. Got it processed and I scanned it. After a lot of photoshop work, I was able to get one useable frame. Someone who should know dates it to 1983.

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This was after my time. Back then, the Photography Instructor was a man named Rick Boitano. I believe he later became the principal at OHS. Is the darkroom still there??

Yeah, it is, but it's got old chemicals, equipment in disrepair, and boxes of old yearbooks.