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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:104CN GHM

Order: 19

Horizontal side: 104 Vertical side: 104

Elements: 3√2, 5, 6, 6√2, 7√2, 12, 14, 16, 18, 14√2, 15√2, 23, 30, 23√2, 30√2, 44, 44√2, 45√2, 74.

Code: 747 0 104 156 59 89 307 74 104 306 74 74 450 59 89 146 0 30 235 14 21 234 37 21 440 60 44 441 104 44 145 0 16 57 14 21 123 19 9 187 19 21 165 0 0 74 7 9 64 13 3 63 19 3 34 16 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)

74
15√2
30
30√2
45√2
14√2
23
23√2
44√2
44
14
5
12
18
16
7√2
6√2
6
3√2