Originally designed to inspect and count thread sizes on woven fabrics, these linen testers are useful in a conservation setting to magnify small objects and fine details.
Available in 2 sizes - Small and Large.
Both sizes have imperial and metric scale plates, and fold down compactly.
Small Linen Tester
Field of view: 25 x 25mm
Lens: Optically ground and polished glass
Comes with a vinyl pouch
Large Linen Tester
Field of view: 102 x 102mm