Hey Val,
Gord chose a great place to sign your guitar, you now definitely have a priceless gem.
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The top grain is very tight, often an indicator of good sound (it is, of course, an indicator of a very old tree). You are lucky indeed.
If any what popular male and female artist would you like to see play that guitar ?
For me it would be Gord of course, and then Doyle Dykes, and female maybe Joni Mitchell, Joan Baez...