One that haunts my dreams. A genuine lettered, 1937-produced Registered Magnum, 5" barrel, McGivern gold-bead front sight fitted by Smith back in the late '40s, hand cut checkering on the hammer, trigger guard, and along the top rib. My friend offered it to me at $3000 when I was a senior in college, at the time it was already worth about 4500 bucks. Alas, he had an emergency and had to sell it quickly and I missed out.
I'll probably never get another chance like that the rest of my life.