Origin Image Seeker is a program for the IBM-7074. It is written in Fortran, although the program uses an Autocoder subroutine. This program determines trial structures from Patterson projections and Harker sections provided that the projection contains either a real or projected atom at the origin or that the section contains a real atom at the origin.
Hansen, D. A. and Erbeck, D. H., "Origin image seeker, an image seeking program for patterson projections and harker sections" (1964). Ames Laboratory Technical Reports. 68.