4"x4"x1/4" Deep Carved Natural Balck Slate Coaster. The bottom has no-slip protectors Detail engraving of the Mount Everest Nepal Summit Survey BenchMarker.

Mount Everest is Earth's highest mountain above sea level, located in the Mahalangur Himal sub-range of the Himalayas. The China–Nepal border runs across its summit point. Its elevation (snow height) of 8,848.86 m (29,031.7 ft) was most recently established in 2020 by the Chinese and Nepali authorities.
Many of our historical Mountian Survey Markers are deteriorating. Where possible I am reconstructing the original designs so we can enjoy them in our homes and preserve the historical values.

Please note that these are natural slate coasters so the edges and surface of the coasters will vary from coaster to coaster.