Plotter output of topological mappings, Ruth Leavitt, 1977. Ruth created these will a calcomp plotter. They were gen art designs for future sculptures. Ruth was a pioneer in computer art. 

This is my first piece to go on loan to a museum and will be shown in Lichtenstein this summer and Amsterdam next summer.

Creator of COPYPASTA | https://copypasta.art | Galleries -  https://deca.art/xFader/galleries

Isn't it sad that I don't own any? Missed the mint and have never picked one up on secondary.

You just must be the proud owner of handfuls of Subscapes