Interior view of Castle Pinckney, Charleston Harbor, S.C. City in the distance

Во время Гражданской войны фотографы создали тысячи стероидов. Стереографы были популярны во время Гражданской войны в Америке. Одна стеклянная пластина с отрицательным эффектом захватывает оба изображения с помощью камеры Stereo. Отпечатки с этих негативов предназначались для просмотра специальным зрителем под названием стериоскоп, который создавал трехмерное ("трехмерное") изображение. Эта коллекция включает стеклянные стерографические негативы, а также распечатки стерографических карточек.

Set of images depicting various harbors, ports, and piers together with ships, fishing and sailing boats, and all types of haven-like places and views. All large image sets on Picryl.com are made in two steps: First, we picked a set to train AI vision to recognize the feature, and after that, we ran all 25M+ images in our database through an image recognition machine. As usual, all media in the collection belong to the public domain. There is no limitation on the dataset usage - educational, scientific, or commercial.

A very large dataset of various big guns, howitzers, mortars, columbiads, all types of canon-like things - everything besides machine guns and rockets. This collection as well as all massive collections on Picryl.com required two steps: First, we picked a set to train AI vision to recognize cannon artillery, and after that, ran all 25M+ images in our database through our image recognition network. All media in the collection is in the public domain. There is no limitation on the dataset usage - educational, scientific, or commercial.