*DC: From Beyond The Unknown was a 25 issue series from the 1970s, reprinting many of DC’s earlier science fiction stories from titles such as Strange Adventures and Mystery In Space. As such, there are no key issues, so it seems strange that someone would have gone to the trouble of slabbing a copy of issue #16, although it is a nice high grade. Still, an interesting curiosity for slabbed comic collectors, or, if you fancy dipping a toe in the water, a good entry level example. 
PICTURED: FROM BEYOND THE UNKNOWN #16 CGC 9.0 VF/NM £30 Unrestored Universal Blue Label, case perfect, white to off-white pages. CGC Ref: 0700324002