- FondsPP - Koop Family fonds
- Series8 - Photo Col. 500 - Koop family photograph collection
- 517 more...
- Item515.0 - Postcard: Haus der "Auflagewirtschaft" in Nizhi- Novgorod
- Item516.0 - Red Gate at Sebesch on the Russian border, 1929
- Item517.0 - Transfer from the Russian to Lithuanian train, 1929
- Item518.0 - Peter Koop was sent to the forests of northern Russia
- Item519.0 - Peter and his fellow prisoners
- Item520.0 - The refugees transfer to the German train
- Item521.0 - Refugees transfer from the Russian to Lithuanian train
- Item522.0 - Arrival in Riga at daybreak
- Item523.0 - Arrival in Riga
- 232 more...