![]() Alan Weinstein's table mat, Berkeley June 2000. |
![]() A tie design at Fry's Electronics, June 2000. |
![]() A tie design at Sears, Roebuck and Co., June 2000. |
![]() The guest room wallpaper at the Shaneson-Szczepanski's, June 2000. |
![]() Maya Bar-Hillel's tablecloth, Jerusalem December 2000. |
The quotient orbifold for the group oo is a Klein bottle. (This one courtesy of ACME Klean Bottle).