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| AMS south Horizontal (normal) ... July 1950 |
| AMS northwest Horizontal (normal) ... 28 Jul 1951 |
| AMS east Horizontal (normal) ... 31 Jul 1951 |
| AMS northeast Horizontal (normal) ... 31 Jul 1951 |
| AMS southeast Horizontal (normal) ... 8 Apr 1952 |
| AMS north 945 Horizontal (normal) ... 31 Jul 1956 |
| AMS west 721 Horizontal (normal) ... 19 Jun 1952 |
| AMS south Horizontal (normal) ... June 1954 |
| AMS south Horizontal (normal) ... August 1947 |
| AMS northeast Horizontal (normal) ... 1947 |
| AMS west Horizontal (normal) ... Summer 1946 |
| AMS southwest Horizontal (normal) ... Summer 1946 |
| AMS east Horizontal (normal) ... Summer 1946 |
| I found what ECA means in Archaeology, 1949, vol. 2, #3, p. 127. (SD) west Horizontal (normal) ... Autumn 1949 |
| north Horizontal (normal) ... 25 Jan 1936 |
| south Horizontal (normal) ... 1948 |
| southeast Horizontal (normal) ... 1948 |
| northwest ... 28 Jul 1951 |
| northeast ... 31 Jul 1951 |
| north 945 ... 31 Jul 1956 |
| AMS southwest Horizontal (normal) ... 2 Mar 1935 |
| AMS Horizontal (normal) ... 4 May 1935 |
| AMS west Horizontal (normal) ... 10 May 1935 |
| AMS southeast Horizontal (normal) ... 26 Jun 1935 |
| AMS southwest Horizontal (normal) ... 29 Jun 1935 |
| AMS north Horizontal (normal) ... 25 Jan 1936 |
| AMS south Horizontal (normal) ... 25 Jan 1936 |
| AMS Horizontal (normal) ... 21 Apr 1934 |
| AMS Horizontal (normal) ... 21 Apr 1934 |
| southeast Horizontal (normal) ... 1949 |
| south Horizontal (normal) ... July 1950 |
| west Horizontal (normal) ... 1958 |
| No negative number. Sheet 108. southwest Horizontal (normal) ... ca. 1956 |
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