No. :.l 717. 



Clocks. 



247 



51 705 A. 1:5. 



51 705 B. 1:5. 



51707. 1:8. 



We supply School Clocks with automatic electric alarm, by which the commence- 

 ment and finish of the studies are indicated with great punctuality; there are various 

 patterns, and prices are quoted on application. 



51.707. Electric Standard Clock for Central Clock Systems, Figure, with seconds pendu- 

 lum, capable of simultaneously operating 40 secondary clocks; driven by weights; in 

 oak case 



The clock is most carefully constructed; the dial, of finely silvered brass, is accurately graduated. 

 This clock is also supplied in more richly designed cases in all kinds of woods, both as grandfather 

 clocks and brack 3t clocks. Further details on application. We shall be glad to supply detailed estimates 

 for the complete installation of clocks on receipt of precise plans. 



51.708. Extra Price for a Nickel-steel Compensating Pendulum 



51.709. Extra Price for a Mercury Compensating Pendulum . . . 



51.710. Extra Price for a Metal Compensating Pendulum 



51.711. Extra Price for a Seconds Contact, so as to be able to read seconds on the secondary clocks also . 



51.712. Electric Standard Clock, as No. 51,707, with mechanical striking mechanism, by which the half and 

 whole hours can be struck on a bell at any other places 



Large Standard Clock for extensive Central Clock Systems, in elegant case. 

 List No. 51,713 51,714 51,715 51,716 



With 3456 points of emission 

 Price 85. 0. 87. 10. 89. 0. 90. 0. 



These clocks have a large and massively constructed mechanism and can also be supplied with 

 a mercury. or metal compensating pendulum (cf. No. 51,709 and 51,710). Up to 40 secondary clocks 

 can be connected up to each point of emission. The contacts are visible and easily accessible; they 

 can be cleaned without influencing the going of the clock. 



51,717. Small Standard Clock with 8-day going and contact mechanism, for working small 

 electric clock systems 



s. d. 



18.10.0 



15. 0. 



10. 0. 



7. 10. 



4. 0. 



23. 10. 



5. JO. 



Cl. 5767, 



2633, 2634, 2633. 



