Marine Corps · SSN history

879 Teletypewriter Installation and Maintenance Instructor

Appendix B lists SSN 879 as “Teletypewriter Installation and Maintenance Instructor” under AR 615-26, September 1942 and supplements, and suggests SSN 239 for conversion. This was not an automatic replacement: each affected Marine’s Qualification Card had to be reviewed against the job specifications before reassignment.

Codes named in this history

Codes without a directory match

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

Documented history

Teletypewriter Installation and Maintenance Instructor

June 1945 is the manual’s publication date. No effective date for a change from SSN 879 is given.

  • The June 1945 Present Title column is blank, so the earlier title does not establish a current specialty in that manual.
  • SSN 239 is a suggested replacement, not a confirmed individual conversion.
Source extraction notes

Predecessor title from the AR 615-26 column: Teletypewriter Installation and Maintenance Instructor. Suggested conversions/remarks: 239. 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.