Lithograph, old school lithograph: on a big slab of limestone with a special pencil; essentially a grease pencil.
Has to be an oil/grease based media for the chemical process of getting the image to etch on the stone. Getting a decent image on a slab of rock with a grease pencil is pretty challenging! After etching the ‘greased’ areas take ink and image can then be printed.
This kind of old fashioned lithography takes about a quarter million dollars worth of equipment (presses, fine limestone slabs, grinder, rollers, inks, etching chemicals etc. etc.) My alma mater, Oregon State has such a lab, as the original printing presses of the Corvallis newspaper were donated to the University back in the day. Such a physical process, it’s really amazing, and I miss it.
“HOW GRAY LIFE WOULD BE WITHOUT PSYCHEDELICS” Ah, to be a student again!