Matching an S380-36 balance

A professional from Charlotte says:
February 10, 2014
Stamp on old balance is 36 4 FO CALDWELL. Would that match up to the 3540 weight?
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Tom from SWISCO responded:
February 10, 2014
No, usually a stamp of 36 5 corresponds to our 3640 weight. You might want to double check the length of your balance. With a stamp of 36 4, the length should be 37", not 36".
36" Series 380 Channel Balance
36" Series 380 Channel Balance
S380-36
$12.27
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