Ofir, from your picture of the reed section, I can tell you that you are missing the gasket at the edge by the T on the reed edge. It should be black almost like a felt foam material. Also if you look good at the text it should reed 1962 and not 1952 No Pro-36’s were made in the 50’s. Plus one of your reeds is completely rusted. I would not scrape it but use a Petroleum jelly or squeeze some lemon juice on it, let it sit for a while and wipe carefully. There are some pictures of how I used window gasket in place of the leather and foam, it work better, bulky but reduced at least 95% of the leaks from the reed chamber just with that change.