US Mint produces domed coins
News: the United States Mint has produced its first contact lens-shaped coins to commemorate 75 years of the National Baseball Hall of Fame.
![US Mint curved coins 2014 gold five dollars](https://static.dezeen.com/uploads/2014/03/US-Mint-curved-coins-2014-gold-five-dollars_dezeen_2.jpg)
The United States Mint has issued $5 gold coins, $1 silver coins and half-dollar clad coins coated in an alloy, which have concave "heads" sides and convex "tails" sides.
![US Mint curved coins 2014 gold five dollars](https://static.dezeen.com/uploads/2014/03/US-Mint-curved-coins-2014-gold-five-dollars_dezeen_3.jpg)
All three designs feature baseball motifs to celebrate the USA's National Baseball Hall of Fame, which turns 75 this year.
![US Mint curved coins 2014 silver one dollar](https://static.dezeen.com/uploads/2014/03/US-Mint-curved-coins-2014-silver-one-dollar_dezeen_1.jpg)
The front face is decorated with a baseball mitt and inscribed with the text "Liberty - In God We Trust", which has appeared on all US coins in 1864, along with the year produced.
![US Mint curved coins 2014 silver one dollar](https://static.dezeen.com/uploads/2014/03/US-Mint-curved-coins-2014-silver-one-dollar_dezeen_2.jpg)
Stitches used on baseballs pattern the raised sides of the coins, where the amount each one is worth is written out.
![US Mint curved coins 2014 clad half dollar](https://static.dezeen.com/uploads/2014/03/US-Mint-curved-coins-2014-clad-half-dollar_dezeen_1.jpg)
The limited-edition coins will go on sale from 27 March.
![US Mint curved coins 2014 clad half dollar](https://static.dezeen.com/uploads/2014/03/US-Mint-curved-coins-2014-clad-half-dollar_dezeen_2.jpg)