Leigh, i'm new to this forum. my main interest are collecting badge's ( grenade ) to the Grenadier Guards. I am and have been now for many years trying to find out when the Grenade ( metal ) was first worn as a cap badge. I know Kipling and King say from 1898, i believe this to be wrong. The Grenade was worn during the Crimea, on the albert cap/bonnet, however this may not have been metal. There are loads of photographs out there of Grenadiers wearing the Grenade and indeed the Pagri badge. Many of these photo's predate 1898. When i can i'll start posting some photo's.
Cheers Andy