i collect world coins from the year of my birth. i have a local coin dealer who will hold coins from this particular year for me. so far, i have about 600 coins from over 100 countries. some of them are from countries that no longer exist, and most of them have been demonetized, but quite a few have numismatic value or high precious metal content. i just like collecting them because i enjoy reading about their history. i also get excited when i find one from a country that i don't have yet, or when i find the last one to complete a set from a country that i do have.
not from great britain, but i have a set of centennial american coins that includes a three cent coin, a twenty cent coin (that was only minted for three years), and a trade dollar coin. there are also one, two and a half, three, five, ten, and twenty dollar american gold coins from the same year, but i don't have much interest in gold.