In addition to the large selection of magic pencils in Jim Rouse's collection, he also had a fair number of other Victorian pieces:
The black hard rubber example at the top has a fixed tip with a screw mechanism - the rear simply pulls out to make the pencil fit more comfortably in the hand.
Jim is particularly proud of the mottled hard rubber example, which he says is exceedingly rare.
Along the lines of the lower example in this picture, there were also several with painted enamel barrels:
At around this time, the design of these diminuative little pencils would be used by Cross on another piece, and on a much grander scale . . .