I believe this is a Stanley #9 1/2 Type 4 but I believe the cap is a little later (or??)
This can be a user or collector or both. Plenty of life left in the blade. I have only done a quick sharpening (it needs more to use it)
I slid a washer under the front knob. If you are going to use the plane i suggest leaving it to help support the worn (see picture) spot from a 100 years of use.
A pretty cool piece for the shop or collection.
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