Hello friends,

It's been years since I've posted, and now I come back to this fount of knowledge looking for a bit of help.

I have recently 'inherited' a Calumet C1, and have completely stripped and restored it to fully functional condition with the intent of starting wet-plates soon. Along with the C1, was a lens mounted on an Ilex No. 4 Acme shutter. I've stripped it down, cleaned it out, gotten it working well...EXCEPT FOR the B and T settings. I have 30+ years of experience with all kinds of shutters, both contemporary and historic, and this one has me befuddled.

The B and T settings are behaving more like a 1/100 speed and neither operate properly via the shutter lever. I have looked up and down for a manual for the shutter and can only find ones for the No. 3.

If anyone has any suggestions/tips/videos etc., I would *love* to figure out these two settings.

Thanking you all in advance for help both past, present, and future.