Hello PS! I am a long time lurker but I don’t think I have posted here before. I recently purchased this beautiful pear cut emerald and diamond baguette platinum ring. I was told it is a vintage Harry Winston from the 60s. I have been researching to try and find this stamp for Harry Winston but the only makers marks I can find are “Winston” or the H on top of the W with a frame around it. Does anyone have any ideas what mark this could be? It’s a beautiful ring but I’m not sure if it’s from Harry Winston. Thank you in advance.