Coil balances,DL stamped on coil, Viking Double Hung

A quick learner from USA says:
Coil balances,DL stamped on coil, for Sunset Glass in San Francisco Ca.
User submitted a photo of a coil balance.
1/2" Thick x 1-1/4", Early 2000-2004, "Viking" Double Hungs
- Wayne
Profile picture of Paul
Paul from SWISCO responded:
I would start by looking at our 15-175 pivot shoe and Series 152 coil spring. I believe these match what you show in your picture. For the broken pivot bar, see our 26-226 to start, though you will need to make sure our measurements are the same as yours.
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