Yes, that's from David Ticehurst's book 'Brighton & Hove Albion: A Portrait in Old Picture Postcards'.(really nice little book if you can get hold of it).
Not sure if you have the 'Albion A-Z' but the entry on Joe Lumley says he was born in Durham in 1882 and started his career with Sheffield...
They are actually players not fans and it's from 1910/11 not 1906. The postcard is in David Ticehurst's book:
In the years leading up to the Great War novelty postcards were often produced by local photographers which proved very popular with the public. Taken during the 1910-11 season, this...