Marine Corps · SSN history

788 Theodolite Observer

Appendix B identifies SSN 788 as Theodolite Observer in AR 615-26, September 1942 and supplements, and suggests SSN 784 as a possible replacement. Conversion was not automatic: each affected Marine's qualifications had to be reviewed against the manual's job requirements.

Codes named in this history

Codes without a directory match

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

Documented history

Theodolite Observer

June 1945 is the manual's publication date, not an effective conversion date; no effective date is given for this entry.

  • No June 1945 title is listed for SSN 788, and the reference to SSN 784 does not establish a fixed replacement.
Source extraction notes

Predecessor title from the AR 615-26 column: Theodolite Observer. Suggested conversions/remarks: 784. 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.