Detail
Type Kol. - Loh is a Kolonie (Colony).
Kr Hattingen - The Kreis for Loh is Hattingen. A Kreis is a government district (similar to a U.S. county).
See Welper - A See notation means the entry is dependent on another entry. In this case, Loh is dependent on Welper, which should be consulted for additional information.
Vgl Loch - A Vgl (Vergleiche) notation lists places with similar spellings that you may want to compare. In this case, you may want to try searching for Loch.