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John Crowley usually has a few in. Here.
Custom Handled Henckels Friodurs : Shaving Shop - luxury classic wet shaving products - straight razors
Not sure if they're from the same stash as the...

You may have got lucky. There have been several guys who have had problems with getting the edge on the scalloped back blades to endure. They get very sharp, but don't last long. I got the best edge...

Good luck! How many layers of tape did you have to put on the scallop back to get it to hold the edge? Look forward to seeing them!