- TitleInformation leaflet entitled: "How to make a twin-elliptic Harmonograph"
- ReferenceMS/1721
- Production date1980 - 1980
- Extent4 pages on 1 sheet
- Physical descriptionIllustrated.
- LanguageEnglish
- Level of descriptionTOP
- Repository nameScience Museum, London
- Conditions governing accessOpen Access
- Conditions governing ReproductionCopies may be supplied in accordance with current copyright legislation and Science Museum Group terms and conditions
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