What does the spec say? If it's not there, it's probably a poltergeist. 

I was also going to ask if there's a spec. If the spec is a bunch of words that don't reference a brand name product, trying copying and pasting a long section of the text into google and see if it takes you to the manufacturer's page.

The bottom of a Baguette is usually a thin crust of hardened dough.

That is an odd shape for tasty french bread. Definitively some poltergeist involvement in that bakery.

BTW, who gets this detailed in their documents going out for bid? This is the level of detail you'd see on shop drawings, not the construction documents.

Of course a Baguette is a form of architectural convex molding and a term used today by the terra cotta suppliers, specifically sunscreens which are supported by aluminum components….usually a kit-of-parts. The striations usually imply a corresponding metal part with striations to make a nonslip nesting joint. Would think that the answer lies with that industry.

The second shape from the right is what they call a Baguette.

dan85 - why don't you just submit your question to the design architect ?