MAWSON & SWAN, 



TELEGRAPHIC INSTRUMENTS. 



Model of Single Needle Telegraph, 

 . 5/ 6 , IO /- 



Needle Telegraph, with japanned 

 dial, alarum, reverse and trans- 

 mitting instrument, 2 los. 



Pair of Morse Sounders, with two 

 batteries, 2 IDS. 



Commercial Pattern, for offices, fac- 

 tories, &c., short distances (up 

 to ten miles), see illustration at 

 side, $ the pair. 



Single Needle Instrument, best 

 quality, as used by Railway 

 Companies, suitable for any 

 distance, ;io 105. the pair. 



Do. do. for short distances, ^5 

 the pair. 



Breguet's Alphabetical Telegraph, 

 with instantaneous adjustment, 



the 2 sets, 20. 



Breguet and Crossley's Patent Tele- 

 graph, receiver, manipulator, 

 and bell together in one box, 

 the 2 sets, ij los. 



13 and 15, Mosley-street, Neivcastle-on-Tyne. 



