Figure 5 [working proof]
Figure 5 [working proof]
Figure 5 [working proof]
Figure 5 [trial proof]
Figure 5 [trial proof]
Figure 5 [trial proof]
Figure 6 [working proof]
Figure 6 [trial proof]
Figure 6 [trial proof]
Figure 6 [color trial proof]
Figure 7 [trial proof]
Figure 7 [trial proof]
Figure 7 [trial proof]
Figure 7 [trial proof]
Figure 7 [progressive proof A]
Figure 7 [progressive proof B]
Figure 8 [working proof]
Figure 8 [working proof]
Figure 8 [trial proof]
Figure 8 [trial proof]
Figure 9 [trial proof]
Figure 9 [trial proof]
Figure 9 [trial proof]
Figure 9 [trial proof]
Figure 9 [color trial proof]
Figure 9 [color trial proof]
Alphabet [trial proof 1]
Alphabet [trial proof 2]
Untitled (Ruler and Fork) [trial proof]
Untitled (Ruler) [trial proof]