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Type | Model No. | Maker | Country | Construction Material | Date | Scale Length | Area of Use |
Linear | Blundell F5100 | Blundell Harling Ltd. | England | Plastic | 1965-1970's | 9 x 45 cm | Blackbody radiation |
Notes: 1) An all plastic version of the Thornton F5100 2) Made by Blundell Harling for an infrared company in the United States called IRCON 3) The instructions are on a card secured inside the lid to the wood case.
Image 1
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Image 2
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Image 3
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Image 4
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Image 5
![](blundell/images/2239e.jpg)