Yeah, looking at the label, its an early to mid 90’s label. The style though suggest its an 80’s style with the block colouring. So they contradict each other, an 80’s style with a 90’s label (reyt weird) I think that this either part of a trial run by Umbro ( the design was never mass produced) or its a reserves/youth player tracksuit top. These were often different to what the senior squad were issued with, also these were never sold to the public. Hence why there’s no photo online either. Perhaps
Vintage Shirt could help on this. I think that you have got yourself something so rare, that its never been seen before. And for that reason, and the condition , i would say that its worth alot ! If nobody on here knows, theni guess the only person is the person who gave it you. You could always email Umbro and ask them ? Worth a shot.