No |
Date |
Title |
✓ |
✗ |
Total |
457 |
15 Dec 1938 |
Cross-number |
38 |
– |
– |
517 |
8 Feb 1940 |
Cross Number |
0 |
– |
– |
698 |
29 Jul 1943 |
Crossnumber: 121 Base |
5+ |
– |
– |
736 |
20 Apr 1944 |
Square-sided Triangles |
5+ |
– |
– |
793 |
24 May 1945 |
Prime-itive |
5+ |
– |
– |
1148 |
1 May 1952 |
Both Worlds (1148 = ARD) |
2 |
– |
– |
1321 |
25 Aug 1955 |
Endless Border |
3+ |
– |
– |
|