Xerox 820-II 5"

10s 512b 40tk dsdd
10 18 13 16 11 19 14 17 12 15
0  8  3  6  1  9  4  7  2  5

Xerox SSSD 5"
ss sd 18sec 128b
1 - 18

Kaypro SSDD
10s 512b
0 8 3 6 1 9 4 7 2 5