Stamp tsar pushka - postal stamp
Summary
16 kopeks stamp, USSR 1978, tsar cannon in Moscow kremlin
Public domain photograph of Soviet postal stamp, USSR, free to use, no copyright restrictions image - Picryl description
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.
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