When new chalkboards were installed in 1917, they simply fastened them over the old ones.
These chalkboards were found in four different rooms, with the subjects and lessons well coordinated.
English teacher Cinthea Comer told The Oklahoman “It was so eerie because the colors were so vibrant it looked like it was drawn the same day. To know that it was drawn 100 years ago… it’s like you’re going into a looking glass into the past.”