Needed ......Dial string diagram/info for Pilot T131 radio..
I picked this one up..it didn't have a shred of string left in it...

Here is a list of dial string guides:
http://www.theoldradiofixerupperguy.com/dial%20cord.html

If you don't see your exact model look at a few other models by that same maker that may help give you a clue.