26DS PP 42 and 26 6 BSI balances

Quick Learner from san diego
Which one would we order if we see the markings ?26DS PP 42? and the
Other pair are 26 6 BSI pa. on the original balance? so no warranty. Thank you!
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Casey
Casey from SWISCO
SWISCO
Expert

Hello, thank you for writing in. We would be happy to help you find replacement channel balances. The stamps that you indicate tell us the necessary spring strength, but we will still need to determine what series you have. In order to do this we will need to see clear images of the plastic fittings at either end of the channels for both stamp options. I would preferably like to see them from above with the open side of the channel, where the spring is revealed, facing up. Thanks!

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