It must be at least thirty years ago when I attended a conference in Mobile, Alabama. One of the men at the conference was an academic, whom I believe was teaching at Wayne State U. in Detroit. His avocation was blues historian and musician. At lunch, during the conference, he asked if I'd do him a favor. He'd been perusing the local pawnshops looking for a depression era Sears or Wards acoustic guitar with a homemade pickup or an early Stella. He'd found what he was looking for, but said he was met with hostility at the pawnshop. "I'm a black man on his first visit to the South and I'm a little afraid of bargaining. Will you get the guitar for me?" There really was no bargaining. Shop owner wanted $100, I offered $50, bought for $75.00. The guitar looked like crap, but with an odd tuning and glass slide, it sounded great. When I commented on the sound, the buyer said, "You should hear it through my home built tube amp." I never did, however.