In a country with a great deal of rainfall, we all need a good waterproof coat. The Macintosh cost is celebrated on the M coin with heavy rain being repelled by the waterproof material.
The Mackintosh 10p coin can be found in your change, coins entered circulation dated 2018.
The Royal Mint released the Quintessentially British A to Z coin 10p collection in March 2018, with first strike M for Mackintosh coins sold online for £2 each, or on a card from The Royal Mint shop for £4.
There is also a Mackintosh 2018 UK 10p Silver Proof Coin available, priced at £35 (6.5g of .925 Sterling Silver in a capsule) or presented in an Acrylic Block at £45 (Limited Edition 15,000)
You can store your letter M 10p with the rest of the alphabet in the Great British Coin Hunt 2018 10p Coin Collector Album.
There is also a Great British Coin Hunt Silver Proof Case that can be purchased for £45, but you will need to spend £910 (£35 x 26) to fill it.
If you want to display a selection of 10p letters, for example to spell out a name, the Great British Coin Hunt Name Frame is available in black or white for £20 and holds up to 8 coins.