File:Holbrook geometrical forms.jpg
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Summary
| Description |
English: Holbrook geometrical form blocks made by Apparatus Manfacturing Company |
| Date | |
| Source | Smithsonian Institute |
| Author | Unknown author |
Licensing
|
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:45, 14 March 2021 | | 480 × 555 (77 KB) | Doug Coldwell | Uploaded own work with UploadWizard |
File usage
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