Numbers 1 and 2

Proof #1.  Click for a high resolution view. Proof #2.  Click for a high resolution view.

Numbers 3 and 4

Proof #3.  Click for a high resolution view. Proof #4.  Click for a high resolution view.

Numbers 5 and 6

Proof #5.  Click for a high resolution view. Proof #6.  Click for a high resolution view.

Numbers 7 and 8

Proof #7.  Click for a high resolution view. Proof #8.  Click for a high resolution view.

Numbers 9 and 10

Proof #9.  Click for a high resolution view. Proof #10.  Click for a high resolution view.

Numbers 11 and 12

Proof #11.  Click for a high resolution view. Proof #12.  Click for a high resolution view.