Socket for the southeast corner post ... AMS northwest 2164 Horizontal (normal) ... 7 Jun 1951
Socket for the southeast corner post ... AMS north 2163 Horizontal (normal) ... 7 Jun 1951
East sill, first three post positions ... AMS north 2170 Horizontal (normal) ... 7 Jun 1951
Post socket, third from south on the east side ... AMS southeast 2165 Horizontal (normal) ... 7 Jun 1951