[1] The club was admitted to the Rugby Football League on 6 April 1983 and entered the Second Division; their application for membership reportedly received "overwhelming support".
[3] In the summer of 1983 the club signed Bob Mordell,[4] Mark Elia[5] and the veteran Ian Van Bellen.
[8] On 5 November 1983 it was reported that acting chairman Jim Thompson had clinched a deal which would see the club out of its financial problems[9] and four days later it was considered to be in a good financial position and to have reached agreement with other clubs about its transfer debts.
[10] The club continued to play competitively, despite its financial problems, and on 11 February 1984 its Challenge Cup tie against Castleford was televised live on the BBC's Grandstand.
Invicta were struck from the 1985-86 fixtures by the Rugby Football League because it was considered not to have formed a team.