Plug Keys :-Brass blocks are mounted on thick Vulcanite base.

The Brass Plugs and lugs are thoroughly inter lapped for perfect. 

Plug Key Commutator :-Four ways round: - The Brass metal blocks are mounted and vulcanite plates The Plugs and lugs are thoroughly interlapped for perfect locking. 

Terminals are provided on each segment.

Plug Key Commutator :-As above but heavy pattern. 

Plug Key commutator :-Six way circular. 

Reversing Switch :-M. I . P. type superior quality. 

Reversing Switch :-On backlite base with handle. 

Locking the Plug head is machine moulded. Brass terminal are provided on the blocks. 

Plug Keys :-With brass block of 9 mm square thick with all brass Terminals and Screws 

Size:1) 1 way, 2) 2 way, 3) 3 way. 

Plug Key :-Thick brass block of 10.5 mm fitted on heavy Bakelite base Provided with all brass terminals. Size : 1) 1 way, 2) 2 way, 3) 3 way, 

Plug Key :-Same as above but heavy pattern. 

Size: 1) 1 way, 2) 2 way, 3) 3 way, 

Pohls commutator :-Used in experiments on hysterics the thick Brass/Copper sheet contact arms the joining strips are fitted on vulcanite Base having 4 mercury pits operation of the contact arm is done with a Bakelite handle. 

The terminals are provided on the side. Max current 5.0 Amp. 

Tapping Key :-(Single contact ) Strip with insulated Knob and terminals mounted on a Bakelite base of high Insulation. 

Tapping Key :-(Double contact) on Bakelite base. 

Mercury Key :-On Vulcanite base. 

Charge Discharge Key :-On heavy Bakelite base, quick action, Silver contacts. 

Used for charging and discharging of a capacitor. 

Ryleigh Key :-For self inductions on backlite base. 

D.P.D.T. Switches :-Machine moulded-mounted on wooden with heavy Bakelite terminals.

Morse Sounder :-Superior. 

Morse Sounder Key Combined :-On wooden base with switch set of two

Carry Foster Key :-Fitted on Bakelite plates with brass C.P, Cup.