"hämeenlinna, ensi kerran kun sun kuutamossa näin", 1897 - 1900, by Albert Edelfelt https://www.rawpixel.com/image/8864084/image-art-public-domain-sunFree Image from public domain licenseStudy sheet with razor shells (Ensis arcuatus), stone-borers (Zirfaea Crispata), and white mussels (Barnea Candida) (1575 -… https://www.rawpixel.com/image/13791896/image-paper-frame-plantFree Image from public domain licenseDifferent types of seashells illustration from Zoology of New York (1842–1844) by James Ellsworth De Kay. Original… https://www.rawpixel.com/image/329396/free-illustration-image-sea-shell-solenFree Image from public domain license