Ow, trying to figure out Japanese kanei tsuho coins from the Krauses gives me a headache, and I don't have any other books that include Japanese cash. I've found
this website to be a helpful one-stop shop, especially since these coins cross three centuries.
So, using that site, I'd classify this one as "old style legs", dating it to the period 1636-1656. Listed in the 1600's Krause as KM/C# 1.1.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis