Parapet of the terrace near the south end. Note use at this point of the solid orthostates with vertical grooves in joints in order to receive the mortar ... northwest 5004 Horizontal (normal) ... 15 Jun 1956
Parapet of the terrace near the south end. Note use at this point of the solid orthostates with vertical grooves in joints in order to receive the mortar ... AMS northwest 5004 Horizontal (normal) ... 15 Jun 1956
Parapet of the terrace at the northwest corner. Note use of the double orthostates fastened with clamps and packed between with cement ... AMS northeast 5003 Horizontal (normal) ... 15 Jun 1956