Havard and Havard has dated this piece to the 17th Century.
This form of construction is associated with Breconshire and Radnorshire and often described as being of “Black Mountains-type”. The original wooden strut hinges have, at some point, been replaced by the current metal ones.

Probably Breconshire/Radnorshire circa 1650-1700.
Literature:
See “Welsh Furniture 1250-1950” by Richard Bebb, Vol 1, pages 146 and 147, where he discusses and illustrates examples from this group of welsh chests.
Havard and Havard has dated this piece to the 17th Century.
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