Sentence:  [I]t was found necessary to employ media of exchange, and emmer wheat and silver were both used for this purpose. The latter was particularly favoured, but it was normally treated by weight, being measured in <WSD>kite</WSD> (9.53 g) and deben (10 <WSD>kite</WSD>) in purely Egyptian contexts, though foreigners such as the Jewish mercenaries at Elephantine could use their own metrological systems. 
Meaning of the word marked with <WSD> tags:  A measure of weight equivalent to 0.1 deben (about 0.32 ounces or 9.1 grams).