Marine Corps · SSN history

317 Monotype Operator

Appendix B identifies SSN 317 as Monotype Operator in the September 1942 AR 615-26 and supplements column, with SSN 168 suggested for conversion. This was not an automatic replacement: each affected Marine’s Qualification Card had to be reviewed against the job specifications.

Codes named in this history

Codes without a directory match

  • 168 stated by the source. No directory or archive record matches.

Documented history

Monotype Operator

June 1945 is the manual’s publication date. No effective date for the suggested conversion is given.

  • The June 1944 and June 1945 title columns are blank; the entry does not establish a fixed transition from SSN 317 to SSN 168.
Source extraction notes

Predecessor title from the AR 615-26 column: Monotype Operator. Suggested conversions/remarks: 168. The table gives no row-level effective date. June 1945 is the manual publication date, not an effective conversion date.

Source documents (1)

Reviewed September 24, 2026 against references 3 and 4.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.