# 418 - Augustin Fresnel (1788 - 1827), Inventor of Fresnel Lense

On 03.05.2019 France issued this stamp to honour Augustin Fresnel, the inventor of Fresnel Lense which are now widely used in Lighthouses.

# 417 - Lighthouses of Taiwan.

This is a pre-paid envelope featuring the Suao Lighthouse (left). This pre-paid envelope was issued on 23.05.2018 at the same time of the stamp issue. The stamp to the right is Tungyin Tao Lighthouse. The stamp was issued on 19.08.2017.

Many thanks to Michael Ho for sending me this cover.