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Undream, what are your thoughts on photochemical etching (different from electro-chem) ?
I think the results are the 'neatest' you can get with a mark that is permanently 'in' the steel. Laser...

Well it's still early days for me too :) But I've found and followed this guide by a local (SA) knife supply company and it's really great information.
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There certainly are many ways to mark blades, and I've looked into most of them. For me I've been experimenting with Photoresistive Etching as I feel it offers far superior edge definition, and it's...