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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:55AA GHM

Order: 19

Horizontal side: 55 Vertical side: 55

Elements: 2, 2√2, 3, 4, 3√2, 7, 7√2, 13, 14, 10√2, 16, 13√2, 14√2, 16√2, 17√2, 25, 26, 21√2, 32.

Code: 212 21 34 174 17 38 140 34 55 141 48 55 72 55 48 71 55 55 323 55 16 30 20 41 31 23 41 257 23 41 41 21 38 22 23 36 21 23 38 106 13 26 136 0 13 265 13 0 164 39 0 163 55 0 135 0 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)

21√2
17√2
14√2
14
7√2
7
32
3√2
3
25
4
2√2
2
10√2
13√2
26
16√2
16
13