Front View CAD drawing
We made several of these fir and walnut sconces for a client several years ago and I have always meant to make some more. They look great on the wall, they're fun to build (though time consuming and a bit fussy) and they give you a chance to try some stained glass work if you're so inclined. The dimensions on the drawing are approximate and I recommend starting with a mockup and/or a full size drawing to lay out the joinery. You should be able to get lamp supplies and advice from your local lighting place or online. Be sure to check grounding requirements with your local electrician.
inside view .. note brass back plate against wall
side view .. dimensions approximate