Basic grids - Rotational Symmetry (1)
R(06,2)-hmr#1086
R(06,3)-hmr#1112
R(07,4)-hmr#1119
R(07,4)-hmr#1216
R(07,4)-hmr#1256
R(07,4)-hmr#1290
R(08,3)-hmr#1134
R(08,5)-hmr#1264
R(08,5)-hmr#1265