There may be refraction glare in the scanning of CGCs. Adventure Comics #218, CGC FN 6.0, Nov 1955. Newly CGC graded FN 6.0 - pretty strict if I may say so!
Looks like a 7.0 to me. At least they got the premium WHITE pages right.
Always go for the best page quality that you can. Only 13 copies have ever been recorded by CGC in 22 years and this ranks 4. Highest so it is a genuinely rare comic book.
New to market for the first time in over 40 years as I bought this at a London convention in the early 1980s and stored it away. One of the great teasing covers that DC always did - what is going on with Jor-El and Lara on Earth persuading Superboy back to Krypton?Curt Swan cover and story. Aquaman and Green Arrow in the back-up stories. Lower priced items sent 2. All comics are bagged or bagged & boarded unless otherwise stated; higher value comics are also in Mylar sleeves. Comics are packaged in specialist cardboard mailers.
Oversized items securely packaged in cardboard. I wrote the Comic Book Price Guide for Great Britain in book form from 1989 to 1998, now updated online. I hosted the on-stage panels at the London SuperCon and now at the MCM Comicons, interviewing eminent artists and writers. I have over 50 TV and radio appearances, as well as producing, writing and presenting the TV series Comicana for the Sci Fi Channel. This item is in the category "Books, Comics & Magazines\Comic Books & Memorabilia\Comics\Comics & Graphic Novels". The seller is "dream_director" and is located in this country: GB. This item can be shipped to all countries in Europe, all countries in continental Asia, United States, Canada, Australia, Antigua and Barbuda, New Zealand, Mexico, Belize, Bermuda, Bolivia, Barbados, Cayman Islands, Dominica, Egypt, Guadeloupe, Grenada, French Guiana, Saint Kitts-Nevis, Saint Lucia, Montserrat, Martinique, Nicaragua, Paraguay, Reunion, Turks and Caicos Islands, Aruba, South Africa, Chile, Bahamas, Colombia, Costa Rica, Guatemala, Honduras, Jamaica, Panama, Trinidad and Tobago.