164 



BENJ. PIKE S, JR., DESCRIPTIVE CATALOGUE. 



Silver and Pearl Mounted Reader. (Fig. 651.) This is 

 a substantial and neat made silver frame, containing a large 

 convex lens mounted to a case of tortoise-shell, or pearl, by 

 ornamental plates of silver, and turning on a pivot into the 

 case. The cut represents the full sized reader. 



Price, $10.00 ; smaller size, $8.00 and $6.00. 



Fig. 6.', I. 



Videoscope. (Fig. 652.) An 

 optical instrument for drawing, 

 reading, sewing, or any particular 

 work, having a clamp to screw to 

 a table, with a joint and sliding 

 tube for adjustment (the tube 

 may be made fast by screwing 

 the nurled nut on it), so that the 

 lens may be fixed in a convenient 

 position, either leaning over the 

 table or projecting from it. 



Price, $5.50. 



ig. 652. 



