Microscope in vintage style
Free download under CC Attribution (CC BY 4.0). Please credit the artist and rawpixel.com.
Experience this magnificent collection of vintage icons including wild animals, classic vehicles, and victorian skull engravings from several artists. Digitally enhanced and now available in high-resolution printable quality, download your favorites under the CC0 license. They are absolutely free and can be used without any restrictions.
Higher resolutions with no attribution required can be downloaded: https://www.rawpixel.com/board/539757/public-domain-icons