Understanding kanji on sword registration stamp on Tokubetsu Hozon documents

[Ron STL]

I'm trying to read the meaning of the circled kanji, first on a recently registered sword and second, on a 1951 registration. Both papers are Tokubetsu Hozon and therefore are of that era, but the early date shows the 1951 date when swords were first required to be registered. I'm just trying to understand more about this. 

Ron STL

[Ray Singer]

北海道 = Hokkaido 

 

東京 = Tokyo 

[Ron STL]

Thanks Ray, that makes sense. I'm trying to understand how this original 1951 registration remained with the sword today, which of course quite interesting to me. Nick Nakamura wrote a thorough article about that era and the registration of swords in one of our KTK publications, I believe in 2018. 

Ron STL