Investing in precious metals - Coins v Bars

[m-abz-t]

Hi all,

Need advice!

Im currently investing in Bitcoins / cryptocurrency and once ive made a certain amount I wanted to invest some of that into actual physical investment like precious metals gold and silver.

Ive tried doing research in the past about investing in coins or bars. What are your thoughts?

Theres too many diff coins; maples, eagles, britannia etc. which one holds value longer? if all the same... which one is best to go for... which ones easy to sell at a later stage?

As im in UK I was hoping to use bullion by post, but not sure what to go for!!