| | The Square of Opposition in Action, p. 71, by Doyle, John J. | 1961 | Classical Sigma-2 | 3 | Square |
| | The Square of Opposition in Action, p. 73, by Doyle, John J. | 1961 | Classical Sigma-2 | 3 | Square |
| | The Square of Opposition in Action, p. 73, by Doyle, John J. | 1961 | Classical Sigma-2 | 3 | Square |
| | A History of Formal Logic, p. 59, by Bocheński, Jozef; Thomas, Ivo (trans.) | 1961 | Classical Sigma-2 | 3 | Rectangle |
| | A History of Formal Logic, p. 141, by Bocheński, Jozef; Thomas, Ivo (trans.) | 1961 | Classical Sigma-2 | 3 | Rectangle |
| | A History of Formal Logic, p. 235, by Bocheński, Jozef; Thomas, Ivo (trans.) | 1961 | Classical Sigma-2 | 3 | Rectangle |
| | A History of Formal Logic, pp. 235-236, by Bocheński, Jozef; Thomas, Ivo (trans.) | 1961 | Classical Sigma-2 | 3 | Square |
| | CS(n): An Extension of CS, p. 51, by Thomas, Ivo | 1962 | | | |
| | CS(n): An Extension of CS, p. 52, by Thomas, Ivo | 1962 | | | Octagon |
| | The Development of Logic, p. 55, by Kneale, William; Kneale, Martha | 1962 | Classical Sigma-2 | 3 | Rectangle |
| | The Development of Logic, p. 86, by Kneale, William; Kneale, Martha | 1962 | Classical Sigma-2 | 3 | Rectangle |
| | The Development of Logic, p. 125, by Kneale, William; Kneale, Martha | 1962 | Classical Sigma-2 | 3 | Rectangle |
| | The Development of Logic, p. 125, by Kneale, William; Kneale, Martha | 1962 | Classical Sigma-2 | 3 | Rectangle |
| | The Development of Logic, p. 126, by Kneale, William; Kneale, Martha | 1962 | Classical Sigma-2 | 3 | Rectangle |
| | The Development of Logic, p. 186, by Kneale, William; Kneale, Martha | 1962 | | | |
| | The Development of Logic, p. 551, by Kneale, William; Kneale, Martha | 1962 | Classical Sigma-2 | 3 | Rectangle |
| | The Development of Logic, p. 573, by Kneale, William; Kneale, Martha | 1962 | Classical Sigma-2 | 3 | Rectangle |
| | The Development of Logic, p. 613, by Kneale, William; Kneale, Martha | 1962 | | | |
| | The Development of Logic, p. 614, by Kneale, William; Kneale, Martha | 1962 | | | |
| | The Development of Logic, p. 57, by Kneale, William; Kneale, Martha | 1962 | Classical Sigma-2 | 3 | Rectangle |
| | Knowledge, certainty and probability, p. 243, by Heidelberger, Herbert | 1963 | Classical Sigma-2 | 3 | Square |
| | Knowledge, certainty and probability, p. 247, by Heidelberger, Herbert | 1963 | Degenerate Sigma-2 with Unconnectedness 4 | 4 | Square |
| | Knowledge, certainty and probability, p. 247, by Heidelberger, Herbert | 1963 | Béziau Sigma-4 | 4 | Square |
| | Knowledge, certainty and probability, p. 248, by Heidelberger, Herbert | 1963 | Degenerate Sigma-2 with Unconnectedness 4 | 4 | Square |
| | Knowledge, certainty and probability, p. 248, by Heidelberger, Herbert | 1963 | Béziau Sigma-4 | 4 | Square |