US D252815 S
Abstract available in
FIG. 1 is a top plan view of a shaft for a marking instrument showing my new design;
FIG. 2 is an enlarged scale left end elevational view;
FIG. 3 is an enlarged scale cross-sectional view thereof taken along line 3--3 of FIG. 1; and
FIG. 4 is a modified form of the shaft for a marking instrument.
The left end view of the modified embodiment at FIG. 4 is essentially the same as FIG. 2 but with the shading indicating the direction of the twist being reversed.