GUEST Karen - Up at the top of the thread is a lot of Info - The bit you need is :-

George Houghton established his Reliance Works in Heaton Street, Birmingham in 1888 and the range of banjos and zither-banjos he made were branded "Reliance". His well made inexpensive range of instruments quickly found favour with dealers and players alike and before long his factory was extended, his staff increased and the name changed to G. Houghton & Sons and production almost wholly devoted to making instruments for other firms to be branded with the vendor's name and/or trademark.

IF your banjo is in good playable codition , its probably not worth much more than £100