68499
It was produced for export by Maxim-Nordenfelt ( later Vickers , Sons and Maxim ) in competition with the Elswick QF 12-pounder 12 cwt and QF 12-pounder 18 cwt guns .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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