I don't know if this will help you or be any faster, or how much you know about the stamp you are trying to find. But if you go to
ebay.com and search Japan and a year in stamps, you will see listings of possibly most of the stamps Japan issued that year, but realize that you might also get the stamp whose catalog number matches that year.
Here, for example, I have entered Japan 1952 in stamps in my search, with the results shown in the link.
Using this, you can go through your stamps and pick out whatever you have from the stamps of the year shown.
https://www.ebay.com/sch/i.html?_od...2&_sacat=260