If I gather all of your subtle hints together and read between the lines, one might possibly infer that perhaps using cloth/thread is slightly preferable over the use of glue. 
 
Thank you all for your help.  I had read somewhere that one used glue, though most of the other references stated cloth or thread.  The piece came to me glued in. 

  It took me a little careful time to get the old glue out to do restoration.  So.....cloth/thread it is. 
   
Any perference: cloth or thread or any other advise?