Hi Martyn,
The figure similar is a Somerset Light Infantry, but you think it is 24th Foot in Home Dress? I really don't know my regiments that well! but I am sure that these are later made figures than the ones on ebay by the sizing and proportion. I wonder what series they came from. I am figuring it may well be Zulu War series add-on as the collector it came from was a Trophy Zulu only collector?
Tom
Do you have any idea what regiment it might be? Were pickelhaube type helmets found in British regiments?