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835.15 pennyweights is about three times as as a Football (American).
In other words, it's 3.15958226601 times the of a Football (American), and the of a Football (American) is 0.3164975353729 times that amount.
(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 255.2083333333 pennyweights and 273.4375 pennyweights. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.
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