Looks to me like it could be homemade. The brackets aren't at the ends of the shelves and the standards look like shiny metal and also they look like they're maybe 16" apart (on the right, anyway). That's the distance between studs.
The bottom shelf looks like it's on iron pipe legs and there are homemade cleats on the wall at a couple of points.
I would have a good look at it in person before commiting to anything, or just ask for a few detail photos.
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