This page contains information about enlisted men’s ratings and associated abbreviations as found on Muster Rolls, Report of Changes, and other official correspondence.
Rate is the pay grade of the person. Rating is the occupational specialty (job) of the person.
Documents are from –
Bureau of Personnel Information Bulletin No.307 October 1942 – “All Hands”
This is an example of the insignia worn by a Radarman Second Class. The specialty mark (symbol) beneath the eagle indicates the occupational specialty of Radarman. Each rating has a unique specialty mark.
The rate of the individual who wore this is Petty Officer Second Class. That rate (pay grade) is indicated by the two red chevrons below the specialty mark.