Leather question

[T. Vandeventer]

A client of mine has a large piece of "Italian leather" (cow hide) which he purchased off Ebay. It was quite expensive and is absolutely beautiful. It is an entire side, maybe 8-9 oz, and absolutely perfect. Not a scratch or blemish anywhere. It is rich rusty brown on both sides. Looks like it might be used for high-end briefcases or maybe boots.

He wants me to use it for a sheath when he next commisions me for a knife. How do I tell if it is safe to use? i.e., not acid tanned rather than vegetable tanned. Y'all know where I'm going with this. Don't want to take any chances.

[Sandy Morrissey]

Terry, chrome tanned leather will not accept a sharp tool impression and it will work out what little it does. If in doubt, you can always line it with a thin bark tanned leather, such as calf or kip---suede is doubtful at best. Paul Long lines with deer hide and his sheaths are exceptional. ---Sandy---

[EdgarFigaro]

Have you heard anything about suede reacting with silver?
I read it in a wood working magazine in a section that was talking about lining boxes. Said to use faux suede as something in the tanning of the suede will react and tarnish silvers.