This is very expired film, produced in the GDR - in this case expired in 19...
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Rollei Superpan 200 in Kodak T-MAX 1+4
8 minutes at 20°C/68.0°F
Adox HR-50 in 23RX 1+19
20 minutes at 20°C/68.0°F
Rollei Superpan 200 at 320 in Rollei Supergrain 1+9
6 minutes, 45 seconds at 19°C/66.2°F
Tasma FN 64 expired for 33 years in Ilford PQ universal 1+18
4 minutes at 20°C/68.0°F