Searching for coil balance spring 344

A quick learner says:
This is a coil balance spring I need a replacement for two sides.
don't know the manufacturer.
It is shown in two pieces as it is broken.
It has a number stamped into it. 344
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Bob from SWISCO responded:

See our 15-192. This shoe uses our Series 170 and Series 171 Coil Balances. Watch the video below. For a single spring stamped 344, use the S170-335 3 pound spring.

SWISCO S170 and S171 Coil Balance Assembly
SWISCO S170 and S171 Coil Balance Assembly
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