Into the 1950's you could purchase glass quart oil bottles. Mostly they used wire rack but some of light wood were also used which these represent.
Note: This is Version5 of the rack. I had a problem with where the handle attaches to the box .. it was easy to break. I left the Version 1 rack up for now but be aware that this version is subject to breaking and has to be handled carefully.
What about Versions 2,3 and 4? Kept fixing issues and the different versions helps me keep this straight. This, the Version 5rack has a gussetts added which should fix that breakage problem and a few other fixes.