The multi-coloured graphics include the front end of an Edwardian sports car as it approaches the brow of a dusty hill climb.
A decade ago one of these 5ft x 3ft 4in (1.52 x 1.01m) signs might have cost around £2000-3000 in decent condition but today they are more expensive.
The example pictured here was offered at the H&H Classics (15% buyer’s premium) automobilia sale that closed online on December 6.
The auction house described it as ‘the best example of this rare sign we have offered, with bright vibrant colours and gloss across the entire image’. Showing only light professional restoration to the edges and mounting holes, it sold at £6900.
This sale, the largest of its type the Cheshire-based car specialist has held, with 802 lots and a total of £220,000, also included a Victoire Spirit of the Wind clear and frosted glass mascot by René Lalique sold at £2300.
A design introduced in 1928, this one, in fine condition, has an engraved post-war signature.