1955 - 1960
Our Questar was made in December of 1960 and Im still looking for an add for that year....
1961 - 1970
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August
1966, Sky and Telescope
This add
tells you essentially that its fine that solar imaging with film,
with NO sunfilters is OK...
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November
1967, Sky and Telescope |
1971 - 1980
1981 - 1990
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March 1986, Sky and Telescope |
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August 1989, Sky and Telescope |
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February
1984, Sky and Telescope |
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November
1989, Sky and Telescope |
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1989
February, Sky and Telescope |
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October
1989, Sky and Telescope |
1991 - 2000
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January
2004, Sky and Telescope |
2001 - 2010
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May 2004, Sky and Telescope |
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February
2003, Sky and Telescope |
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March
2005 Sky and Telescope |
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May
2003, Sky and Telescope |
2011 to Present
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