I might have figured out what pre-dated the '
stargazer chair,' since it
seems to be agreed that there isn't any medieval basis for it...
From: Purissima Benitez-Johannot.
Sieges d'Afrique Noire du Musee Barbier-Mueller.(exhibition preview) African Arts (37)1 (Spring 2004): p.75
"In Côte d'Ivoire, Mali, and many countries in West Africa, the canvas folding chair -- standard issue in colonial military camps, missionary stations, and administrative outposts -- evolved into the elegant, two-piece collapsible wooden chair..., standard issue in local villages and market stalls today."
p.78 has two photographs, one of a museum piece that is probably the most interesting when you're trying to date something prior to the 1960s... (emphasis mine):
"Folding chair,
yatenzalanga, Senuto peoples, Côte d'Ivoire. Hardwood, longest dimension 82cm (32 1/4"). Former Josef Mueller Collection,
acquired before 1939. BMG 1006-35."
The second picture is of a similar chair called a
kaul.
I can't find a photo on the
Musee Barbier-Mueller website, but what gave me this inspired idea in the first place, was that a few weeks ago I noticed one of these chairs in a Oxfam shop and started wondering...
I wonder if there is more evidence that it was derived from folding canvas chairs, or if it is just guessing on the part of the author, but at the very least there is a date we can point at.