Lithographed educational card, showing a detailed view of the surface of the Moon when held to the light. With an informative sub-heading, which reads “Diameter 2153 miles, distance from the Earth 240,000 miles, density rahter more than half that of the Earth”. A note at the bottom explains that the image shows the Moon as seen through Lord Rosse’s telescope at Birr Castle, with a description by Dr Scoresby. Circa 1860. Reynolds produced transparencies and a range of other didactic prints from the 1840s to the 1870s. Good condition: closed tear at the left-hand side, taped on the reverse of the card; transparency itself lightly foxed; corners bumped.