First of all....I love this site! So interesting and love the comments. On this topic I do find it odd. I
inherited my stamps from my father as well. I've found that the journey starts with me working to ID stamps and then asking for help if I have issues. I like the Swedish Tiger site to narrow down the stamp. With this stamp its pretty obvious. As far as values, that's like asking how long is a string - ?? The better question would be "does it or do they have value?" Again, go look on
ebay for value. If you think you have an exceptional stamp in centering and condition, maybe you could ask if you should get a cert. I also find it funny how many people think they have found a stamp worth thousands of dollars. To all the experts who comment.....Thanks!! Keep commenting, I love it.