First level normal tetraflexagon cutout

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**Figure 3:** Top side of the first level normal tetraflexagon cutout. Together with its backside, the figure contains one single tetraflexagon.
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**Figure 4:** Bottom side of the first level normal tetraflexagon cutout.
$\begin{figure} \centering \begin{picture} (406,360) \put(0,0){\epsfxsize=406pt \epsffile{1storderb.eps}} \end{picture} \end{figure}$

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2000-09-05