Thanks Dognose for the very quick response. Yes, having delved a little further, I have found a couple of other examples of the mark, a little clearer, as well as a trademark registration for this "logo" of the 'word' "OLRI" in an oval.

The company was founded in 1948 by Rino Greggio, who had been an apprentice silversmith in Padua before the war. It appears that he worked exclusively in silver (typically, 800 grade) until 1967, when he launched a line of products in silver plate, and chose the brand name "OLRI" to distinguish these from the company's regular silverware. By the 1970s Greggio Argenterie had become a significant player in the manufacture of cutlery and silverware, with retail outlets worldwide, including a dedicated department in Harrods. The business is still going strong today, although the OLRI brand is no longer used.