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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:139AC GHM

Order: 19

Horizontal side: 139 Vertical side: 139

Elements: 1, 1√2, 2, 3, 3√2, 5√2, 16, 16√2, 32, 29√2, 30√2, 43, 32√2, 48, 43√2, 64, 48√2, 80, 91.

Code: 917 0 139 320 91 139 321 123 139 162 139 123 161 139 139 803 139 43 306 29 77 647 59 107 290 29 77 487 0 48 480 48 48 54 53 43 23 58 46 12 59 47 13 59 46 30 56 46 31 59 46 434 96 0 433 139 0

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Just three people are credited with the discovery of Primitive Perfects:

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

William T. Tutte (WTT, Canada, 1917-2002) (15:44AI, 17:136AJ and 19:56AJ only)

91
32√2
32
16√2
16
80
30√2
64
29√2
48
48√2
5√2
2
1√2
1
3√2
3
43√2
43