William Ehrhardt Birmingham Key Wind Chain English Silver Pocket Watch

Great Britain, key wind open face Hunter case pocket watch,  Made in England, circa late 1800's. Engraving Hallmarks, Sterling Lion Mark, Silver, Coat of Arm,  made by English maker William Ehrhardt , with Birmingham symbol. glass cover face, triple case, ornamental. Excellent working, overall, normal wear.  key attached with silver chain,  open link chain, with Irony & uniqueness. special Great Britain identification. Sign of Maker's Mark WE . The mark indication of 1821 mark of 9640, also interior of the first cover engraved mechanism slight golden metal indicates Warranted English Lever 326728. No sign of defects, just being aged.