The lid, located in the seam area between Greek Nicosia and Turkish North Nicosia, was clearly made by a Turkish manufacturer (according to the standard markings).
It is unclear what the letters GURSO AYONSE mean (some may have been deleted), if you know the details, click on the question mark
GJS-500-7 also called GGG50 marks a strong and heat-resistant type of metal while GJS is a sign for Continuously Cast Spheroidal Graphite Iron - which describes a process in which the metal is continuously fed.