This section provides details on the elusive Errors, Freaks and Oddities (EFOs) of the Scouting topical area. The foundation for this section is from the article series "Errors and Major Varieties in Scout Philately" by Sheldon S. Levy. Further reading is suggested in the 1998 Catalogue of Errors on US Postage Stamps by Stephen R. Datz.
- 1948 USA Girl Scout Stamp Double Paper, Cachet Error
- 1950 USA Boy Scout Stamp Perforate, Smudged Print
- 1960 USA Boy Scout Stamp Perforate, Green Arm Band Variety, Missing Plate Number
- 1962 USA Girl Scout Stamp Gutter Pairs, Perforate
- 1967 USA Boy Scout World Jamboree Postcard Missing Colors
- 1985 USA Boy Scout Stamp Perforate
- 1987 USA Girl Scout Stamp Missing Colors, Color Shift, Ink Blob, Solvent Smear
- New U.S. 22c Girl Scout Stamp Error Reported
- 1998 USA Scouting Begins Perforate, Cross Gutter Blocks
SOSSI Journal Volume 12, Number 2-6, February-June 1963