What are the different types of British gold coins?
Could you elaborate on the various types of British gold coins that have been minted throughout history? Are there any specific designs, denominations, or eras that stand out as particularly significant or collectible? Additionally, are there any current or recent gold coins being issued by the Royal Mint or other authorized mints in the United Kingdom? Lastly, what factors should collectors consider when purchasing British gold coins, such as rarity, condition, and market demand?