176 



Projection Apparatus and Accessories. 



No. 50 986 - 



50986. 1:6. 



50 988. 1 : 3. 



50 987 a. 1:4. 



N 



50993. 1:10. 



50 994. 1 : 20. 



50.986. Adjustable Slit with diaphragm and handle, Figure, adjustable by m i c r o- . s - (1 - 

 meter screw motion 1. 8. 



50.987. Adjustable Slit with Diaphragmic Disc for varying the length of slit also. With 

 diaphragm and handle 1. 6. 



50.987 a. - - do., the slit being fitted with micrometer screw, Figure . . . . 1. 16. 



50.988. Adjustable Slit with Iris Diaphragm, Figure, slit with screw adjustment, with 

 handle 2. 6. 



50.988 a. do., with Micrometer Screw 2.16.0 



50.989. Undulating Slit, with diaphragm and handle 0.16.0 



50.990. Row Of holes for inserting in the shade of the undulated slit 0. 4. 



50.991. Diaphragmic Disc with circular holes of different sizes, with handle 0. 18. 



50.992. Diaphragmic Disc with different shaped holes, equilateral triangle, square, equi- 

 lateral pentagon, rhombus and rectangle, with handle j 1. 1. 



50.993. Table Top, for tilting, 85x26 cm, Figure, with handle, for tilting the lantern ; 1.10. 



The table top is intended to be used with Model A and B lanterns. We will quote prices for 

 other similarly constructed lanterns on application. 



50.994. Stand for Projection Lanterns, size of top 90 x 45 cm, with hand wheel and gearing 



for vertical adjustment; table top is rotatory. Figure 4. 10. 



This table top is intended for setting up Model A and B lanterns. Prices on application for 

 other lanterns. 



50.995. - - Preceding, with inclinable rotatory top, Figure; size of top 90 x 45 cm; 

 travelling on castors 6. 5. 



CI. 5454, 297, 

 323, 

 232, 232'. 



