It’s the 80/81 and 81/82 kit (black collar). We stuck with those thick stripes for years as we plummeted down the divisions.
We didn’t. We changed from them i’m 82/83 season. https://www.historicalkits.co.uk/Hull_City/Hull_City.htm
I meant the late 70s/ early 80s when we fell from Division 2 to Division 4. 81/82 was the final year for that type of kit which we’d worn from about 75.