File:Acorn (PSF).pngDescriptionAcorn (PSF).png English: Line art drawing of two acorns. A: white oak B: red oak Source Archives of Pearson Scott Foresman, donated to the
File:WikiVoc-acorn-1.svgFile:WikiVoc-acorn.svg which was based on File:Acorn (PSF).png which was extracted from File:PSF A-10009.png Author Original line art: Pearson Scott Foresman
File:Imbricate (PSF).pngDescriptionImbricate (PSF).png English: lying lapped over each other in regular order Date 19 March 2020 Source Archives of Pearson Scott Foresman, donated
File:Oak (PSF).pngDescriptionOak (PSF).png English: Any of a genus (Quercus) of trees or shrubs of the beech family that produce acorns Date 28 December 2019 Source Archives
File:PSF A-10009.pngDescriptionPSF A-10009.png Raw image from Pearson Scott Foresman donation Date 12 December 2007, 18:47 (UTC) Source scans from source by Pearson Scott