Coach-building. A spring, shaped like the letter C, used to support the body of a carriage.

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1794.  W. Felton, Carriages (1801), I. 72. Named according to their shape … the S, the C, the … grasshopper spring.

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1825.  Hone, Every-day Bk., I. 1525. The springs … differ not from the present fashionable C spring.

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1878.  Mrs. Edwardes, Jet, xiii. 568. Her ambition is bounded by a brougham on C. springs.

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1884.  Times, 19 Oct. (Advt.) 2/5. An elegant light patent landau, brougham, patent cee-spring Princess Victoria and mail phaeton.

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