North wall of the "Poros Building Annex" abutting against back of early Wall Z. The State Prison was published as Poros Building in Hesperia 20 (1951) ... AMS west 2555 Horizontal (normal) ... 14 Apr 1949
General views of the northwest room. The State Prison was published as Poros Building in Hesperia 20 (1951) ... AMS east 2829 Horizontal (normal) ... 7-8 November 1949
Northwest room. General view looking along west wall line. The State Prison was published as Poros Building in Hesperia 20 (1951) ... AMS south 3060 Horizontal (normal) ... July 1949
