Bottom Bracket Query

Willisa6
Willisa6 Posts: 5
edited May 2019 in Workshop
I have obtained recently I type of sealed bottom bracket I have never seen before. It's got a lock ring on each side and a cup which is tightened with the shimano bottom bracket to from a few years ago.

It came to me with a campagnolo chainset. I'm not sure if if will fit the campagnolo square taper or the shimano one. I'm also interested in how you tighten the two sides up?

Any advice gratefully received. Anyone know what make it is. There are no marks on it.

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