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Archival Status
The Institution of Engineers, Sri Lanka
Public Knowledge Project PLN
Preserved : 38 (2 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 5); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (0 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 3)