As I was looking online I found this image. I was wondering if this is the currently used stamp for the Akihabara station?
I am also curious to know how often they change they change the designs of the stamps or they remain unchanged forever as sorts of logos for the areas that they represent?
The still have the same stamp. Will edit the post and upload mine soon.
The bridge and the building are closer to the station, but are at a corner of the current area of attraction. So, I kind of feel that it should change. But I could not find an instance where they changed the stamp of a station.