This device from WW1 denoted long service at the front on the Oldenburg FAC 2nd Class

This device also echoes the full size version, and was used on the Brunswick EAC 2nd Class to denote 2 years WW1 frontline service

Tiny versions of the full size battle bars for any German colonial medal are quite unusual-these are for the 1900-1901 China Campaign Medal.

This sensible device to differentiate between the SIX Prussian generic blue ribboned long service awards is a Third Reich mini for the XII Years Service Medal, and is quite scarce, BO

This M1937-39 Red Cross Medal device also was a scarce attempt to show exactly which of SIX awards was worn on this same ribbon.