As a defence aid for their country during the post-WW2 era, the British commonwealth passed thousands of Lee Enfield rifles (along with Sten and Bren guns) to Greece. Many rifles were reduced into parts and stored in grease until they were sold on the surplus market in the 1990s.
Many of these rifles saw use by commonwealth soldiers during the Second World War, and occasionally have different markings that reflect their travels such as the Greek Delta stamp on top of the receiver ring. When the rifle barrels were removed by Greek arsenals, dents may have formed around the front of the receiver ring as well. Conditions vary.