Certainly don't mind at all,
B
Bacchus
, as those are good adds to the narrative as many have been confused by Shiro's various categorizations of their models over the years, earlier with the
Bears system, then more recently with the
R (renewed) designation, and ongoing with knife iterations categorized as
NS (New Series). Here's a
link to a post in this thread by
mikomonday
, a very knowledgeable Shiro collector, speaking to the fading
Bears labeling and the emergence of
R Series knives. It's also worth noting that no knives sold through the authorized North American dealer carried Bears categorizations and only knives sourced directly from the workshop had the white COAs such as the one pictured on the previous page in my post #4700. I also believe that those familiar black vertical COAs that originated around the same time were filled out on this side of the pond.
For a little more on the Bears categories, here's a quote from Shiro rep Tom in a USN PM exchange we had some years ago:
"
To keep it simple, let's use the pivot system as our way to class the knives into different categories (though it is not the only exception, it's an easy rule of thumb to follow).
3 bears - MRBS (multi-row bearing system) with a steel underlay. For example, all of our R models
2 bears - MRBS without the steel underlay. For example, NeOn Lite and HatiOn Lite OR SRBS (single-row bearing system) with CF handles/scales.
1 bear - SRBS (single row bearing system) or washers with G10 scales.
If you look at our current/recent output, we have been channeling our efforts towards folders in three- and one-bears categories. The only notable exception is NeOn/HatiOn Lite, which is a 2-bears model."
I did have more from Tom in another message with more defining characteristics as well as some listing of which models were which, but I can't find it on my laptop right now, and anything posted over at USN (V1) is now gone.
Of course there are more characteristics that defined each category, not a few of them at least somewhat overlapping. As
mikomonday referenced in his linked post, the
2 Bears category was the "murkiest" as some of the knives thusly included had features that defined other
Bears groups--the NeOn's and 111's of that period, both 2 Bears knives, were MRBS, and the 111's all had one underlay washer.
Finally, of note in reference to your post, aside from including Shiros on washers,
all (Edit--
some) SRBS knives of that period were also considered 1 Bear models.