Shiraki

[Genghis_F]

Looking at some Shiraki mizu honyaki
These have Shiraki kanji but was curious is there a way to tell if something is older vs nagakawa era?

 

[dreamwalker]

There is one available in BST:
https://www.kitchenknifeforums.com/threads/price-drop-shiraki-and-haruma-honyaki-yanagiba.65895/
Really good price.....