In the 1980s and 1990s, the Morgan Plus 8 was very much Morgan's flagship. In those days, they were considered with awe by owners of "lesser" (i.e. smaller engined) Morgans.
 
A series of similar oval badges was produced to celebrate 21, 25 and 30 years of the Plus 8 model. Of these badges, several versions exist. Good copies of these badges are now hard to find.
 
The 21 Years badges were unnumbered, the 25 Years badges were stamped with a 3 digit number on the rear, starting with 0.  The 30 Years badges had 2 digit numbers on the rear.