The first one is a map of China, Korea and Japan "Ubersichtskarte von China und Japan". In this map, Korean territory was indicated in yellow whilst Japan's territory was shown in orange. Please take a look at Ulleungdo, which was labelled as "Matsu Schima" - it looks as coloured in yellow. Yes, it accurately shows that Ulleungdo belonged to Korea. Then, please take a close look at Liancourt Rocks, which is labelled as "Liancourt R." - it was coloured in orange! Yes, it shows that Liancourt Rocks belonged to Japan. At least, the rocks were not recognised as Korean territory in the 1890's - it is quite natural because Korean eastern limit had been believed to be Ulleungdo.
(Broughton bay was labelled as "Broughton Bai")
The next one is a map of China and Korea, "Ostchina und Korea". Korean territory is shown in yellow and Japan's teritory is coloured in red. Liancourt Rocks were not drawn in this map. Ulleungdo, which was labelled as "Matsu Schima", looks as coloured in red - Japan's territory, although this is inconsistent with the map above. But anyway, it is certain that western people believed that Liancourt Rocks were out of Korean territory.
(Broughton Bay was labelled as "Broughton B.")
This German atlas is one of the circumstantial evidences to show that Liancourt Rocks didn't belong to Korea at all at least in 1890's, before the Korean Edict #41 in 1900 and the incorporation of the rocks into Japan's Shimane prefecture in 1905.