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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:53AC GHM

Order: 19

Horizontal side: 53 Vertical side: 53

Elements: 4, 4√2, 7, 8, 9, 7√2, 12, 9√2, 14, 15, 12√2, 17, 18, 15√2, 24, 17√2, 18√2, 26, 19√2.

Code: 192 19 34 184 18 35 183 36 35 172 53 36 171 53 53 243 53 12 94 27 26 93 36 26 46 15 30 85 19 26 156 0 15 45 15 26 265 15 0 141 29 26 72 36 19 71 36 26 155 0 0 124 41 0 123 53 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)

19√2
18√2
18
17√2
17
24
9√2
9
4√2
8
15√2
4
26
14
7√2
7
15
12√2
12