Early Mk1 Bren with white highlighted markings

[Brit plumber]

All the scrubbed Brens came in the Ex Greek batch and the story goes that these were Brens returned to Greek authorities after a treaty with a Greek separatist/terrorist group. I've never researched this but it sounds plausible. One thing I know for sure is that they are Greek in origin. A museum curator in Athens got in touch with me some years ago asking why a Bren he purchased at an Island market had no markings (it was original, ie rusty all over and live). It matched perfectly the Deac examples found in the UK