You really need better resolution on the pics. The candlestick you refer to is a Perron(Tower/Steps). The intertwined E&L is for the provisional proof. The P.1K242.3 should be 1Kg 242.3 - weight. With the 12C in a diamond, I would venture to guess if may have been made between 1890 & 1924. Better definition pics would help.

Kind Regards,

Raimey
rse