[Arran]

  I am finally getting to my rogers 10-12 and I find that the grill cloth is not attached to a board behind the grill.. It is glued to the grill  [around the edges].  On this radio ,the grill can't be removed. I need to take  off  the grill cloth so I can strip the cabinet.. any suggestions are welcome

Dan;
  Try some alcohol, lacquer thinner, or acetone, that stuff was probably hide glue so water will soften it too but water may cause the grille to delaminate. Another possibility is to try a heat gun, see if that melts the glue off, or steam, but the steam may make the grill delaminate. I've never seen a grill cloth glued to the inside of a console cabinet, even Rogers console cabinets, though it's common in table sets. Even when they started cheapening sets out in the 1939-42 period with things like an RCA-Victor A-30 the grill cloth was at least glued to some cardboard and the cardboard then tacked or stapled onto the inside of the cabinet.
Regards
Arran