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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:85AA GHM

Order: 19

Horizontal side: 85 Vertical side: 85

Elements: 1√2, 5√2, 10, 8√2, 10√2, 18, 20, 23, 25, 27, 28, 29, 31, 23√2, 33, 27√2, 28√2, 29√2, 31√2.

Code: 315 0 54 314 31 54 230 62 85 231 85 85 80 39 62 181 57 62 287 57 62 333 85 29 272 27 27 271 27 54 255 27 29 201 47 54 102 57 44 103 57 34 54 52 29 12 28 28 294 56 0 293 85 0 280 28 28

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)

31
31√2
23√2
23
8√2
18
28
33
27√2
27
25
20
10√2
10
5√2
1√2
29√2
29
28√2