I think that these were definitely replacements. They are not named, but they have definitely been worn like this. The tape used to secure the plastic is old and the straight pins used to hold the ribbons together underneath the plastic are rusted. I suspect an older gentleman wore them like this on his civilian attire? 1980s or 1990s? What do you think? Either way, I bought some period lengths of ribbon and will reconstruct the proper mounts following the mounting tutorial here, so that they can be displayed with the uniform.
http://gmic.co.uk/index.php/topic/62214-medal-mounting-tutorial/