Not sure Doug on the number. Got a watch on the other one. This one came up "BIN".
Wish there was more info on these. Keep running across variations that aren't suppose to be authentic - but they have the sticker.
Ran across this one (my favorite) from an auction and it is exactly the same as the one I have. Like to know how much it went for.
View attachment 2
And people that should know were saying that it was modified.. Not to mention all the differences in the bases/stem attachments of the ones I have.
Has to be some literature out there somewhere.
This is why it is important (for me) to develop & maintain an archive for the older tying stuff.