The museum is open Fridays through Tuesdays 11 a.m. to 4 p.m. Free timed-entry passes are required. Review our latest visitor safety guidelines.

Disentanglement Puzzle

Disentanglement Puzzle

<< >>
Usage conditions apply
The disentanglement puzzle consists of three bent metal pieces with circular arcs. They fit together but come apart. The longer piece and one of the smaller ones together are similar to the Gilbert Tangle Twister puzzle.
A.C. Gilbert Company, Book of Instructions for Use with Gilbert Puzzle Parties...., New Haven: A.C. Gilbert Company, 1920, p. 10. A copy of this booklet is online at, accessed July 26, 2017.
Jerry Slocum and Jack Botermans, Puzzles Old & New: How to Make and Solve Them, Seattle: University of Washington Press, 1986, esp. p. 96.
Currently not on view
Object Name
Physical Description
metal (overall material)
overall: 1.2 cm x 6.6 cm x 2.5 cm; 15/32 in x 2 19/32 in x 31/32 in
ID Number
accession number
catalog number
Credit Line
Gift of Edith R. Meggers
Mathematical Recreations
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.


Add a comment about this object