Singer 411M made in Italy. Unusual in UK, but I bet there are plenty undercover in Italy: )
The 411 machines are basically 401s, with the additional ability to chain-stitch. With the correct original throat plate & hooked bobbin case, of course. It is also capable of treadling with the correct hand wheel assembly: )
(See this 411G on another page Original treadle spec. A truly versatile machine.