I was hesitant about this one butit was very cool indeed. There was info on stamps, postage processing equipment, the evolution of delivery, as well as postal investigations. One rhing that was totally bew to me was the story of Owney. He was the dog of a postmaster who took to the rails. He traveled all over and was considered good luck.
Stamps from around the world
Colorful
RFD stands for rural free delivery
Planes Trains & Automobiles
The story of Owney the postal mascot
Taxidermy kept him fresh for over 100 years
He traveled all over tge USA on postal service trains
Here he is!