vX*fe 



BAIRD &TATLOCK (LONDON) LTD. 



Extras on Recorders. 



5488 1 Alarm Contact, fitted to Recorder, with Bell, Battery, and 36 ft. Cable with Insulators 

 and Screws 



5489 1 Dustproof Lock-up Cover for Recorder 



100 



Extras on Indicators. 

 5486 T Dustproof Lock-up Cover for Wall Type Indicator only, in hard wood, see Station 9, 



Fig. 8 

 5487* Extra for Wall Type Indicator, with specially bold 7 in. scale for reading at a long distance, 



il . . db X V V 



to order only 



Indicators can be supplied to order to meet all conditions, amongst other varieties : 

 Double Scales, Centigrade and Fahrenheit. 

 Two Ranges. 

 Special Ranges. 

 Special Calibrations.. 



Knife-edge Pointers for specially fine readings. 

 Illuminated Scales for dark positions. 



Quotations will be given on receipt of particulars. 



400 

 1 10 



Fig. 12. Thermo-electro-motive forces. 



CROSS STREET HATTCTN GARDEN, E-C 



990 



