SME is known as a premium maker of tone arms and analog accessories for turntables. Formed in 1946 as the Scale Model Equipment Company Limited, SME began as a manufacturer of scale models and parts. In the 50's, the company started manufacturing the more specialized parts, eventualy the tonearms and turntables they're now known for.
Notable SME products include:
SME M2 Tonearm
SME Model 10 turntable
SME Model 309 Tonearm
HomeTheaterReview.com's SME product reviews include:
There is also a history of the brand on Wikipedia.