Different stamps for windows

A quick learner from Idaho says:
Hello People of Swisco,

I have two different window sizes with different springs, to save time, I would like to address them both in the same e-mail:

One measures 26 + 11/16" L x 3/8" W. It has a stamp etched in stating "26 2 BSI" and a smaller stamp (perpendicular to the 26 2 BSI) of PF. Simply put:
L: 26 11/16"
W: 3/8"
Stamp: 26 2 BSI [PF]


The other measures 26 and 7/8" L x 3/8" W and is stamped with "26 4 BSI" and a smaller stamp (perpendicular to the 26 2 BSI) of TE. Simply put:
L: 26 7/8"
W: 3/8"
Stamp: 26 4 BSI [TE]

BOTH SPRINGS HAVE THE SAME STYLE ATTACHMENTS: The bottom and top attachments are both winged. Bottom attachment measures 1 and 1/16" wide. The top sits about 7/8" above the channel.
Thumbnail of the uploaded file named IMG_20200718_145547408_HDR.jpg
Thumbnail of the uploaded file named IMG_20200718_145516905_HDR.jpg
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Casey from SWISCO responded:

Hello,

We'd be happy to help but both of these balances will have to be custom made. We'll need a clear picture of the metal clip at the end of each balance, as well as a picture of each bottom fitting from the side so that we can see the rivet used to secure them to the channel.

Lastly, please let us know the quantities that you'd like to order for each balance. Thank you!

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