ID from a headbadge

[dazaa]

Anyone recognise this headbadge? Bike has some pretty nice Strata components so assume 50's or 60's

 

[vcballbat]

Looks like it could be from Williamson Bros London. You have a clip type headset so maybe an early decal instead of a headbadge

https://www.classiclightweights.co.uk/classic_builders/williamson-brothers/

 

[keithglos]

Cast lugs and headclip likely late 1930s or just post war
keith