[ Ref. Gary Stevenson in 210921 MMDigest

Dear Gary, The rubber coated cloth you require can be purchased from

https://www.herzogleather.com/en/article/rubber-blanket/ 
Contact email: Herzog Lederfachhandel <herzog@lederfachhandel.de>

I have found them to be most helpful. They also can sell you leathers
of various kind including good quality pouch leather.

Kind regards,
John Oakes