Little tree trunk style lamp

Hi all,a recent post made me think of this cool little home/workshop fabricated lamp I had in storage. The trunk is completely non-magnetic so the ‘trunk’ look was achieved by using lead. Looks to have been bronzed a one stage (now mostly rubbed off) Standing 21,5cm. Is the switch 60’s or earlier? Obviously will need to be rewired with a new lamp fixture. Thanks for any comments