The caduceus is the traditional doctor's symbol.
The plural noun is insignia.The singular noun is insigne.
A fireman sent in the idea of the insignia to the owner, and initially he rejected it but the fireman died on his job and the owner used the insignia as a memorial.
That is an interesting insignia. This insignia has an eagle.
The Ring of the Fisherman (papal ring) contains the insignia of the particular pope. It is used by the pope to impress his insignia on wax to seal important Vatican documents.
Insignia
INSIGNIA You are correct.
bronze and silver
Subdued rank insignia in the US Armed Forces wasn't introduced until the Vietnam war.
Which insignia did you have in mind, since there's a few different insignia worn? There's rank insignia, branch insignia, and regimental crests.
How do I delete on my Insignia camcorder
Insignia is a noun.
Lieutenant Commander