Wales Silver Motors. The cars were advertised for sale for £195. Production was suspended for the First World War, then resumed afterward. Except for detail changes, the engine remained the same until the Ten ended production in 1923; the chassis was redesigned in 1921. The two-seater was priced at £395. In 1921, Singer purchased motorcycle and cyclecar maker Coventry Premier, selling a four-wheeler of their design, powered by a water-cooled V-twin, for £250, under that name until 1924. The engine was changed to a four-cylinder Singer in 1922, but the car ceased production in 1923. In 1922, Singer's first six-cylinder was a of , with a dated fixed head. This new 15 used a chassis very similar to the 10's, and had one interesting feature, a retractable luggage rack. In 1924, the 15 was offered with a Weymann fabric body. Sales of the 15 were "modest". The 10's engine was converted to overhead valves in 1923 and monobloc, while the next year, the Ten also got a Waymann body option. The new 10/26 replaced the older 10 in 1924. it offered a engine and modernized styling. It was offered in several models, from the £195 four-seat Popular to the £295 Saloon Limousine Del Luxe. At the 1926 London Motor Show, the company debuted the Junior, powered by a OHV . Priced from £148 10s as a four-seat tourer, it had only rear-wheel brakes to start. A racing 10 set the Brooklands lap record in 1921 at . Meanwhile, the 10/26 became the -engined Senior, joined by the new Six, powered by a inline six based on the 10/26's and four-wheel servo-assisted brakes from Clayton Dewandre. The same year, Singer took over Calcott Brothers. In the 1920s, Singer sales climbed steadily, By 1928, Singer was Britain's third largest car maker after Austin and Morris. Singer, restricted by a built-in site, acquired other companies for factory space. In 1926, they made 9,000 cars. In 1929, with seven factories and 8,000 employees, they produced 28,000 cars, though having just 15% they trailed far behind Austin and Morris which shared 60% of the market. Hampered by their new acquisitions, the cost of new machinery and a moving assembly line in their latest acquisition, Singer's offerings were eclipsed by new models from Austin, Morris, and Hillman; from 1932, these were joined by the new Ford Model Y. The Senior would be redesigned in 1928, with