1975 Michael Kennedy, Martin B. Solomon, "Ten statement Fortran plus Fortran IV"
The zigamorph is a character which is a combination of 6 different keypunch characters and is not valid when using Fortran compilers other than WATFIV.
1975 John B. Moore, "WATFIV: Fortran programming with the WATFIV compiler"
The hole pattern for a zigamorph is 12-11-0-7-8-9. The symbols following a zigamorph and preceding either a semicolon or column 73 are considered to be a comment.
2008, "Jeff Jonas", Re: TOPS-10 (on newsgroup alt.folklore.computers)
(I'm using // as the printable version of the zigamorph 12-11-0-7-8-9 multipunch that resulted in the fence character 0xff which allowed comments on the same card as a statement).
