Foxs Glacier Mints ad from 1983

Fox’s Glacier Mints are the leading, branded boiled mint in the UK. They have been manufactured by Fox’s Confectionery in Leicester since 1918. The mints were developed by Eric Fox, one of the original founders of Fox’s Confectionery. Since 1922 the mints have been sold with the Peppy the polar bear icon. Peppy is typically depicted as though standing on one of the mints. Glacier Mints resemble miniature blocks of ice and are clear and translucent. Companion products are Fox’s Glacier Fruits & Fox’s Glacier Dark.

Info gleaned from Wikipedia