DISRAELI DOCUMENTS
The instructions show the interesting cable routing round a roller on the derailleur (Simplex used something similar a decade later). The example that I have in this collection has this cable roller. But my example differs from the drawings here in that the drawings show a cable adjuster on the derailleur, while my example has no adjuster on the derailleur - the adjuster is mounted on a clip on the chainstay.
These instructions also show the gear ratios when a 17 to 20 tooth 4 speed cluster is used with the 3.3.3. hub gear.
I admire the Shimano 3.3.3. logo and the graphic design in general.