Gibson seems a toy maker...like Parker Brothers...I think
http://en.wikipedia.org/wiki/Dedicated_deck_card_game
It's kind of hard to track playing card makers, cigarette card makers and others making novelty items...since usually we who come to these forums originally were fans of more recent tarot decks. But I've become a fan like most of us of older games and divination-related titles, even though the makers of such things were not known for making 'divination tools'...I think the publishing of such things more like novelty items?
"In 1903 H. P. Gibson started up The International Card Co. with one of his first games being “The New Game of Peter Pan”, as J M Barrie's play Peter Pan was all the rage at the time. Even after he had sold The International Card Co. to De la Rue's in 1919, he set up another new company, H. P. Gibson & sons which is still going strong today making card games and jigsaws.The new economic realities at end of the First World War saw the closure or amalgamation of some of the old card firms due to lack of staff and investment..."
So 1920 would be right...
In this case of Gibson & Sons making a card deck...it might be like tracking the original Rider and Sons, publishers who became better known for their divination card decks and titles by fans of such things here...I noticed the name De La Rue and by coincidence, I believe there's an Etteilla-style deck of that publishing company of the 1890s-1920s...but that's a sidebar.
I am thinking how hard it is sometimes to track down the smaller publishers of beautiful, historic and interesting old style cards...whether general oracle, playing card, or tarot...it seems like the most I've seen about Great Britain's esoteric or occult decks that I hear about are after 1910. So it's great to hear if there's decks that would precede the Rider Waite!
There's limitations of looking backward to card publisher histories if we are thinking they originally for divination or occult publishers, as an aside...I was thinking in years to come...perhaps divination fans like ourselves would be checking into a 20th century toymaker like Parker Brothers, who we might know on the aeclectic.net forums in 2008 as those who copyrighted the name of the 'ouija board' name in 1966...Parker Brothers in 1966 was able to buy the rights to the name 'ouija board,' move operations to Salem, Massachusetts (known for haunted/curious history in the U.S.) and sell such a thing as a novelty...if we were divination 'talking board' historians looking backward, we might guess Parker Brothers were occult publishers lost to the mists of history...unless someone remembered or unearthed history on them as a toymaker who was cashing in on a novelty item way back when...
Best wishes...sorry if I misread the info...
Cerulean