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Scientific American, Vol. 27, No. 12 (September 1872) (1872)

leaf 3

An illustration from Scientific American, Vol. 27, No. 12 (September 1872), 1872, leaf 3
rspective; Fig. 2 is an edge tions, it is cut through. This process requires the utmost ac- tion is regained. To place the iridium point, the blank must view with the door, A, closed, and Fig. 3, a similar view with be fitted to receive it. This is done with great rapidity by a curacy and delicacy… … support tbs inner edge of thefclosed door. Fig. 3 plete. The inside of the pen is then smoothed plainly represents the location of the different , with a kind of steel burnisher, and finally a cut- parts with the door open and also shows the move- ting wheel is allowed to rotate for a second or…

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