Well for my two cents. Have worked with leather on and off for quite a while. Obviously the pictures shown have leather over leather. To begin distressing it you have to understand how the leather that your going to use was tanned. Something that old was more than likely vegetable tanned leather. I dont know of any acids that would help in this and pumice would only be good for the abraided spots that have worn clear through. Vegetable tanned leather can be degraded by heat and sunlight (perhaps ovens and lamps after roughing it up). There are some other bits of information that may help but i dont know how in depth to go with this reply. Glad to help with what I know. You can email me if you like. email@example.com
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