2017 MARKET UPDATE:
There are plenty of positive prices on this book, but it "mirrors" many of the Silver Age key issue DC comics by not being traded often enough to be hotter.
We still like our recommendation of CGC 5.0, which has seen a 10 percent bump over last year.
There's confirmed news of more DC Comics movies in the works, including Justice League of America, and fans of the comic books will know that Flash is an integral part of that super-team.
What's the best grade to invest in? That depends on your budget. There is a big jump from 5.0 to 6.0 and beyond, but there is very little price difference between 4.0 and 5.0.
If you choose your book carefully, you can get a nicely-presenting mid-grade copy for the same price as a VG.
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