GAVO's historical photographic plate archive (GHHPA) is a collection of various digitized historical photographic plates. It currently exposes:

• the scans of plates of selected Kapteyn special fields obtained at Potsdam
• the Palomar-Leiden Trojan surveys, 1960-1977,
• a collection of plates obtained at Boyden Station, South Africa, kept at various German observatories.

Other plate collections kept by GAVO include the Heidelberg Digitized Astronomical Plates HDAP, ivo://org.gavo.dc/lswscans/res/positions/siap, and the APPLAUSE database from Potsdam.

• Astrophotography
• History of astronomy