I hope that the #60 skin Stephen Goodman used from PPC is not the type
I had about a year ago.  The skins also came in envelopes and they were
soaked in glycerin.  They felt moist and quite flexible, almost
transparent.

All I want to say is that if they are soaked in glycerin, the glue
will come undone no matter what you try.  This has been confirmed
by a number of MMDers.  I ended up having to return the skins and
I re-purchased from the Leather Supply House. Those skins were good.

Regards,
Bernt Damm