Next to the known PNL and PCS enlargers Philips also offered around 1983 very shortly a most primitive one lens-element enlarger within the experimenting-kits range.
The idea was to offer a boys-book with an adventure story in which photographs play a role: "Markus mit den drei Augen" (Markus with the three Eyes).
At the end of some chapters reference is made to a certain photograph taken. The respective negative is found on an enclosed 4-image film-strip.
The negative can be enlarged and printed by means of that primitive enlarger added as a construction kit.
To my great surprise neither photopaper nor chemicals seem to have been added.
http://norbert.old.no/kits/ee3000/ee3073.html
The idea was to offer a boys-book with an adventure story in which photographs play a role: "Markus mit den drei Augen" (Markus with the three Eyes).
At the end of some chapters reference is made to a certain photograph taken. The respective negative is found on an enclosed 4-image film-strip.
The negative can be enlarged and printed by means of that primitive enlarger added as a construction kit.
To my great surprise neither photopaper nor chemicals seem to have been added.
http://norbert.old.no/kits/ee3000/ee3073.html