Ghio had one-line entries is the Paris Bottin in the post-WW1 years, at 9 rue de 29 Juillet, Paris.
He acted as an agent for Italian cards bearing the cockerel logo, see card 5012. Later ones don't have his name but a logo, the monogram FG (which can look rather like FC), see card 5042. (This was very yellowed with age, I have restored the image of the face to something like its original appearance.) There is a separate entry here for cards with the logo of a cockerel in a star.
The FG logo also appears one one of the
hold-to-light cards illustrated here under the KOSMOS logo. As the manufacture of these cards was highly specialised he would have been acting as agent or buyer-in for this card.