Best vintage Chisels

[dannyr]

I believe these two ultra thin mortice chisels were made out of industrial bandsaw blades but I could be wrong.
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I have one similar (but the handle is just a micropigsticker style) definitely (well-)made of old machine hacksaw blade

I have actually found it quite useful on occasion, eg the wedge didn't fit well on an old woody plane and it cleaned the corner edge of the wedge groove better than alternatives.