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Re:3D metal printing is about to go mainstream by CupOfJava on Monday July 31, 2017 @12:47PM (#14893610)
This article coincidentally is an exception! A ton is the right order of magnitude:

The US Treasury says that $1 million in $100 bills weights 22 lbs[1].

The $115 million that they raised in the last few months would weigh about 2200 lbs.

[1] http://answers.google.com/answers/threadview?id=441929

edit: grammar

Re:3D metal printing is about to go mainstream by ChuckMcM on Monday July 31, 2017 @05:40PM (#14896119)
Epic win on the weight conversion :-)