From a personal archive of original NASA film, our upcoming series of modern-era glass lantern slides are believed to be the very first documented true photographic prints of the Earth produced via the antique, glass dry plate method.
From the original snapshot taken on 70mm film in space circa. 1972, to this circa. 2020 glass dry plate, all iterations of the image are true darkroom photographs. No scanning or otherwise digitization was employed at any stage.
This photographic print of the Earth has never touched a computer. Thus it is truly a product of the natural order (ie. light and chemistry).
The particular plate shown here was produced from the original, vintage NASA 4x5" Kodak color transparency film. Being that the source film was a positive image, an internegative needed to be created in order for additional positive prints to be produced. The internegative was made via the contact print method on black and white sheet film and the b/w negative was then used to contact print the glass plate positive.
This picture shows the original, untouched glass slide (3-1/4 x 4) on a light table with no cover plate.