Blue Rangers 1981 Scottish Cup Final worn track suit top

Blue Rangers 1981 Scottish Cup Final worn track suit top, Umbro, Large, with button-up front and embroidered badge inscribed RFC, SCOTTISH F.A. CUP FINAL 1980/81

In the final played on 9th April 1981 at Hampden the match ended in a 0-0 draw, in the replay played on 12th May 1981 at Hampden, Rangers defeated United 4-1

We are unable to identify who the above was worn by