|
|
| Horizontal (normal) ... 23 May 1936 |
| AMS Horizontal (normal) ... 23 May 1936 |
| east Horizontal (normal) ... 23 May 1936 |
| west Horizontal (normal) ... 1950 |
| east Horizontal (normal) ... 1950 |
| northeast Horizontal (normal) ... 1954 |
| west Horizontal (normal) ... 1951 |
| west Horizontal (normal) ... 1951 |
| north 2300 Horizontal (normal) ... July 1950 |
| AMS north 2300 Horizontal (normal) ... July 1950 |
| Horizontal (normal) ... 30 Mar 1936 |
| AMS Horizontal (normal) ... 30 Mar 1936 |
| Horizontal (normal) ... 30 Mar 1936 |
| AMS Horizontal (normal) ... 30 Mar 1936 |
| north Horizontal (normal) ... July 1950 |
| AMS north Horizontal (normal) ... July 1950 |
|
|