22 BENJ. PIKE'S, JR., DESCRIPTIVE CATALOGUE. 



Fine French Bow Pen.(Yig. 19, page 21.) 



Price $1.75 to 3.00. 



Bow Compass, with shifting leg and points, (Fig. 20, 

 page 21.) The general construction is the same as the 

 ordinary compass, with a socket in the leg to insert the ink 

 or pencil point at pleasure, as in the large drawing com- 

 passes. Price,"$2.50 to 3.50. 



Steel Bow Dividers. (Fig. 21, page 21.) These are a 

 still finer description of instrument, much used by good 

 draughtsmen in forming small centres, repeating divisions 

 of a small but equal extent, etc. Price, $2.00. 



Steel Bow Pen. (Fig. 22, page 23.) The same as the 

 steel bow, with the ink point in place of the plain point. 



Price, $2.25. 







Steel Bow Pencil. (Fig. 23, page 23.) The same as 

 the steel bow, with the pencil point in place of the plain 

 point. Price, $2.25. 



The Universal Bow is formed as a bow pencil, and has a 

 shaft with one end finely pointed, and on the other a pen 

 for ink, either end of this can be inserted in the pencil 

 holder, and secured by its spring or screw ; thus combining 

 the three in one instrument. Price, $3.00 to 4.00. 



Needle Point Instruments. (Fig. 24, page 23.) Com- 

 passes and bow instruments are sometimes formed with 

 arrangements for using needles for their points, and are 

 called needle point instruments, and serve very well for 

 delicate purposes. We give here a representation of a bow 

 instrument with needle point, and the ink and pencil points 

 to turn on a swivel, either of which can be in a moment 

 brought into use ; the bow is also jointed in the legs. It 

 is a very desirable and useful instrument. 



Price, $3.50 to 7.00. 



Proportional Compasses (Fig. 25, page 25), consists of 

 two parts or sides of brass, which lie upon each other so 

 nicely as to appear but one when they are shut. These 

 sides easily open, and move about a centre which is itself 



