2O 



MAWSON & SWAN, 



BINDING SCREWS. 



Brass Pillars, to screw into wood, 4d., 5d., and 6d. each; 



3/6, 4/6, and 5/6 per dozen. 

 Brass Pillars, with loose steel screw to come through wood into 



the brass pillar, French pattern, same prices. 

 Brass Clamps for Zincs, 6d. each 5/6 per dozen. 



Brass Clamps for Carbon, 6d., 8d., and lod. each; 5/6, 7/6, and 



9/6 per dozen. 

 Clamps with two screws to join wires, 6d. each ; 5/6 per dcz. 



For large wires or cable, 1/6 each. 

 Clamps for various other purposes. 

 Any of these Clamps and Screws can be had nickel plated at small extra cost. 



CARBON BLOCKS 



6xixi 7x1x1 8xi|xii 9x1^x1! inches. 

 Price 8d. i/- " 1/6 2 /- "' each. 



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



