KLF03 (2nd version). KLF04 (2nd version Variable Temperature).
Genuine Smeg Kettle Lid Base Mechanism For KLF03 KLF04 Kettle READ DESCRIPTION
Genuine Smeg Kettle Lid top  For KLF03 KLF04 Kettle 692173794
Genuine Smeg Kettle Lid Base Mechanism-mk3/2 KLF03 /04 692173794 please read 
Dualit Kettle Lid Model Number JKT3 Stainless Steel Parts Spare Replacement