Looks old like it was reclaimed.

Yes it has an old finish.

World Market has some industrial-look shelving units that mix wood and metal. I didn't see this exact unit, but they have a few with a similar look.

https://www.worldmarket.com/category/furniture/living-room/cabinets-shelving.do

Pretty run of the mill bookcase IMO sure hope you are not planning on that much clutter on yours

Great finding! I would go with two ones from HD (bc of price) and stain wood with color you like.

@Addition Planner, thanks. How is the quality from Birch Lane? I have never ordered anything from their site before. I found a 5 shelf on Walter E. Smithe's site but it is expensive and out of my budget. https://www.smithe.com/sarreid-five-shelves-bookcase/40249-1162/iteminformation.aspx

I'm wondering where I can find something similar for less than a third of the price!

@napervillemom - From what I understand, Birch Lane, Wayfair, Joss + Main, and AllModern are all the same company. I would read the reviews for furniture, but I've ordered from Wayfair before with no issues.