All Minimus Extents - : x | : 14 n : 12 u : 34 =-= : 34x34 or 12x12 =n= : x12x or 34.12.34 =u= : x34x or 12.34.12 I : reflection symmetry point O : rotation symmetry point I|n|O In=|O I-=|nI I|-|n|I In=|-|I I-|=-=|nI I|n|-|u|O I-=|=n=|O O|n|n|u|O -|n|n|-|n|u| I-|-|n|n|-|n|-I I-|-|n|u|-|u|-I I-|n|u|n|n|u|-I I|-|n|-|-|-|n|I I|-|n|-|-|u|n|I I|-|n|n|-|u|n|I I|n|-|u|n|n|u|I In=|-|n|=n=|-|I In=|=-=|-|=u=|I In=|=-=|n|=u=|I In=|u|=n=|-|u|I In=|u|=n=|n|u|I O|-|n|-|-|-|n|O O|-|n|n|-|u|n|O O|=-=|n|=u=|u|O -|-|n|n|-|n|-|n|u|n|n|u| -|=n=|n|-|=-=|=-=|n|=u=| -|=n=|n|-|=n=|u|=n=|n|u| -|n|n|-|n|u|u|n|n|u|n|u|