224 2x2 & 2x4 Curved Bricks was a System i Leg set released in 1956. It contains fourteen curved bricks, seven 2 x 2 and seven 2 x 4 bricks, and was in production from 1956-1966. There were eight separate releases of this set from 1956 onward. Each version was released in a different country and had different piece counts.

- Germany, Austria, Switzerland, Netherlands, Belgium sets from 1956-57 contained 14 curved bricks.
- Germany, Austria, Switzerland, Netherlands, Belgium sets from 1957-58 contained 20 curved bricks.
- The Continental Europe sets from 1958-62 contained 20 curved bricks.
- United Kingdom version from 1960-65 contained 20 curved bricks.
- The US version from 1961-66 USA contained 33 curved bricks.
- The Canadian version from 1962-65 contained 27 curved bricks.

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Value $132.49
Growth  26398.0%
Annual growth 7.5%
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