| Category | License | Title | Info | Download | Report | OCAL | CC0 Public Domain | protn |  |  |  | OCAL | CC0 Public Domain | UsingATelescope |  | | | OCAL | CC0 Public Domain | StrangeManWithTelescope |  | | | OCAL | CC0 Public Domain | Telescope |  | | | OCAL | CC0 Public Domain | Barometer2 |  | | | OCAL | CC0 Public Domain | flammarion1888 |  | | | OCAL | CC0 Public Domain | flammarion1888 color |  | | |
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