From Harvey's Hotel and Casino Postcard Collection (PH-00367) -- Postcard reads, "'Atomic detonation shown was 75 miles distant.' From the 'Up and Atom' City Las Vegas, Nevada"
37 x 64 cm. on sheet 57 x 89 cm., folded to 29 x 23 cm. On verso: continuation of map. Includes index and advertisements. Original publisher: Western States Publishing Co..