The image is a photograph of a sign on a metal railing. The sign is white with black text and is located on the side of a building. The text on the sign reads "OH-23G Helicopter (U.S.A.)". Below the text, there is a list of information about the helicopter, including its model number, flight duration, and other details. 

The sign appears to be in Korean and English, as indicated by the text at the top of the image. The background is blurred, but it seems to be an outdoor setting with trees and buildings visible in the distance.