The cards are highly collectable, especially among Subbuteo collectors. The game was available from the 1947-48 season, throughout the 1950's, right up until 1964-65. A complete version of this collection is currently on sale on the Subbuteo World website for £349.
The only thing I know about this card is that it uses the same "Webber" photograph as the D.C. Thomson Footballers series from 1923. It has a plain back, it may be a proof or even a packet issue looking at the border and the way it has been cut, it seems as this card is unrecorded, so the value is anyones guess.
This collection was printed on the cigarette packet slide. Pictured here are the single photo on packs of 10 and the pairs on the packs of 20 cigarettes.