Marble Rye
Discussion
(don't know what that is)
Here look, its dual colours of rye bread 
never seen that fr
is it just the color or also something diff w the taste?
Just colour but makes your sandwich look fancy
https://www.cbc.ca/news/canada/windsor/more-than-paczkis-blak-s-bakery-was-built-on-rye-1.3403715