Type D. - Ostrow is a Dorf (Village).

Type Kol. u. Vw. - Ostrow is a Kol. u. Vw.

Lvl I Pr. - Level I shows which Kingdom or State the place is located in. Ostrow is located in Preussen.

Prov Brandbg. - The Province shows which Province or State the place is located in. Ostrow is located in Brandenburg.

RB Frankfurt - The Regierungsbezirk for Ostrow is Frankfurt. The Regierungsbezirk is a government district that is in hierarchy between the State and Kreis level.

Kr Oststernberg - The Kreis for Ostrow is Oststernberg. A Kreis is a government district (similar to a U.S. county).

AG Zielenzig - The Amtsgericht for Ostrow is in Zielenzig. The Amtsgericht is where the Lower District Court is located.

BKdo Cüstrin - The Bezirkskommando for Ostrow is in Cüstrin. The Bezirkskommando is the District Military Command. You can look in the BKdo to find military records.

StdA Ostrow 1) [self] - The Standesamt for Ostrow is in itself. The Standesamt is where the Civil Registration Office is located.

A Ostrow 1) [self] - The Amtsbezirk for Ostrow is itself. The Amtsbezirk is the District Office.

ev. Pfk. 1 - Ostrow has 1 evangelisch Pfarrkirche (Protestant parish church).

Vgl Ostro - 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 Ostro.