Can you tell from these pix whether this diff is open or LSD?

Hi folks. I’ve just bought my first mx5, an NB from 2005. It also came with a bunch of spares. One of these is a diff although it’s unknown whether it’s an open or LSD. Is there any way to tell from looking at it which it could be?

Sorry for multiple posts, I can only add 1 pic per post at the moment

All you can tell from that is that the diff didn’t come off an automatic.

A picture taken of the drive shaft ‘holes’ might help.
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