A walk was needed. Quite by chance we stumbled across this sedan chair in an inn. The painting on the sides are quite beautiful, I don't know if you can see, but there's a French look to them. And if you look closely you can see the metal loops at the bottom where the carrying bars would be placed.
There's a little more about how not to find a Byzantine palanquin and the mysteries of writing and research here on the Harlequin Historicals Author Blog
And if anyone has a picture of a real Byzantine palanquin, I would be very grateful!
By the way, the inn was the Crown at Chiddingfold, and I had mussels and chips for lunch...I LOVE mussels and chips.
Here's a close-up of the crown which attracted me in the first place, given my heroine is a Byzantine princess.