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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:69AA GHM

Order: 19

Horizontal side: 69 Vertical side: 69

Elements: 2√2, 4, 6, 6√2, 12, 9√2, 15, 11√2, 17, 18, 19, 15√2, 22, 17√2, 25, 22√2, 25√2, 26√2, 44.

Code: 445 0 25 264 26 43 170 52 69 171 69 69 90 35 52 191 54 52 157 54 52 156 54 37 181 44 43 125 44 31 45 54 33 24 56 31 110 58 33 65 44 25 64 50 25 255 0 0 254 25 0 220 47 22 221 69 22

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)

44
26√2
17√2
17
9√2
19
15
15√2
18
12
4
2√2
11√2
6
6√2
25
25√2
22√2
22