It says Swisher and inside the flap is a color image of King Henry VII.Ironically his heavy smoking led to his death by bronchitis, of which he suffered frequent bouts later in life.
If it's worth a decent price, Dad may like to sell it. It's up to him.
There are (2) of these chairs that we own. They are identical except the one not pictured has no seat. The one pictured has a repair at the top, looks like it was broken and then glued. I don't know much at all about these chairs except I believe my parents bought them in London in 1971 or so. It is possible they were bought the following year in Chicago IL. My mother says the dealer told her they were at least 200 years old.
The certificate of authenticity provides the following information: "Wood engraving in color on Rives paper after a watercolor, signed in the block. Blindstamp of the editor, J.Estrade. One of 100 images from the "Divine Comedy". Published by Les Editions d'Art Les Heures Claires, Paris. From the collection of the editor. The 101 wood engravings for the "Divine Comedy" were executed over a 14 year period from 1951 - 1964. From 1951 to 1960, Dali painted watercolors which were used as studies for the wood engravings. From 1960 - 1964, Raymond Jacquet created the more than 3000 wood blocks which were necessary the complete "Divine Comedy" with the participation and final approval of Salvador Dali for each of the 101 engravings."