Rolls Royce halftrack

'This is an Alpine Eagle conversion for Russian winter roads, said to have been made especially for one Mr. Lenin back in the early '20s. The base vehicle [can you really use that term for a Rolls?] was confiscated from some member of the Russian nobility and equipped with the so-called 'Kregresse drive' -- a hang-on device converting any car to a halftrack 'Kegresse audosledge'. (Adolphe Kegresse, born French, lived in Russia and served as a consulting engineer to one of our former imperial departments. He was the very man behind the later Citroen half-track lories upon returning to his native France [see next pic below].) The car still exists and is kept in one of the still-numerous Lenin museums. RR Silver Ghost was a very popular vehicle amid the motorized Russian nobility, being a well-built and tough chariot, quite capable of withstanding our awful running conditions -- even in winter. The Czar himself had a limo on this chassis. By the way, the original Alpine Eagle tourer was a 1914 model.'

Source: www.prewarbuick.com