![](https://coimages.sciencemuseumgroup.org.uk/30/666/large_thumbnail_1928_0945__0002_.jpg)
Sales display unit for 3M Magnetherm double glazing system
- Made:
- 1981
![Sales display unit for 3M Magnetherm double glazing system](https://coimages.sciencemuseumgroup.org.uk/387/362/medium_smg00086177.jpg)
Sales display unit for 3M Magnetherm double glazing system, to illustrate an application of a plastic magnetic material
Sales display unit for 3M Magnetherm double glazing system, to illustrate an application of a plastic magnetic material