Viking 2220M 23 inch balance

A quick learner from California says:
I'm going to need about eight balance Springs total. I'm starting with this one and I will upload photos for the others. Although I think they all have the same plastic piece at the ends because they're all Viking brand. This one pictured is 23 in. The others are 29in. Four of the 29in are 2840. And two of them are 2830.
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Tom from SWISCO responded:

Hello! These are Series 395 balances, S395-29 and S395-23 to be exact.

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