Andersen Window Balancers

A home owner from Bedminster, New Jersey says:
Please help me identify the replacement balancers for these old parts. They are all Andersen Windows balancers, there are various numbers engraved, but they do not seem to correspond to current parts. The markings can be seen in the pictures and are repeated below:

E53 9#27 5-78

E57 9#27 5-78

E59 9#27 5-78

J30 5#23 5-78

B38 4#25 1-78

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Tom from SWISCO responded:

Hello! for the three balances stamped with "9#27," you can use our 24-939 to replace them. For the "5#23," you can sure our 24-531. Finally, for the "4#25," you can use our 24-431.

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