unusual oval chair/Plail?

chair has 2 simple curved legs in front, 2 square slightly curved legs in back

open oval seat with metal and cloth straps, cloth coverd cushion

20 small square rails curved from seat to arm rest

2 larger square rails in front that extend down front legs

arm rest and back are all one piece at same height from seat

arm/back rail height is at mid-back when sitting in chair