I found this info on an auction site.

A good English three-quarter Armour composite, C. 1580 - 1610.
BURGONET with two piece skull and high comb, hinged ear guards, riveted peak and neck guard, main borders rolled, "#13" stamped on right ear guard, still retaining it's original burlap liner, (very rare).
Breastplate well formed, and painted "no 15" inside, with strong central ridge, heavy rolled neck and arm cusps, one plate fauld with attached tassets of five lames.
Backplate with rolled and roped edges and armoures mark of four dots, one in each corner.
Arm defenses comprising pauldrons of three lames with rolled and roped edges upper and lower cannons and elbow cops, finger gauntlets with high cuff and five metacarpal lames, fingers and thumb. Gorget front and rear each with three-neck plates rolled and roped edges. Some repair, restoration and replacements.
Breast plate and Helmet deaccessioned from Tower of London, 1972, mounted on a plastic mannequin with a foam head on a turned Mahogany Wooden base.
SOLD $ 17,500 US