Here is my attempt at posing the lamp. Note my rest position rather than natural is straight vertically. I think this eases calculating angles.
Theres actually quite a bit of detail in the screws at the side. You can’t really see that however which is a little disappointing.
My reference image (not creative commons) was from this commercial site.
http://www.andrewmartin.co.uk/lighting/industrial-style/proust-desk-light.php
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