This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
slides schools biology mushrooms surreal illustration drawing sketch photo border indoor text writing blackandwhite black background black and white Slide from set used to teach biology at Belleville Collegiate Institute and Vocational School Belleville Ontario possibly in the s. The original boxes were labelled 'Junior' and 'Senior'