https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13960320Edit ImageSaveSaveEditCropCustom TextHonourable Artillery Company ground, London: people gather in the streets and on roof tops to watch the Lunardi hydrogen balloon going over their heads in the sky, 1784. Process print.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 874 px | 300 dpiLarge JPEG 3188 x 2323 px | 300 dpiFree DownloadHonourable Artillery Company ground, London: people gather in the streets and on roof tops to watch the Lunardi hydrogen balloon going over their heads in the sky, 1784. Process print.More