Explorer II Dowmetal Commemorative Coin - National Geographic's Collectors Corner2024-03-28T22:52:35Zhttp://ngscollectors.ning.com/forum/topics/explorer-ii-dowmetal?commentId=1029239%3AComment%3A93228&feed=yes&xn_auth=noYou are welcome.tag:ngscollectors.ning.com,2014-10-21:1029239:Comment:932282014-10-21T13:57:37.755ZCharles Gannonhttp://ngscollectors.ning.com/profile/CharlesGannon
You are welcome.
You are welcome. Awesome your my hero worked l…tag:ngscollectors.ning.com,2014-10-20:1029239:Comment:928832014-10-20T22:45:57.075ZDannyhttp://ngscollectors.ning.com/profile/Danny
<p>Awesome your my hero worked like a charm! It was so dark it wasn't ledgable Now I can actually read it and display it. Thanks for sharing your knowledge Charles</p>
<p></p>
<p>Awesome your my hero worked like a charm! It was so dark it wasn't ledgable Now I can actually read it and display it. Thanks for sharing your knowledge Charles</p>
<p></p> Danny,
The quickest way is t…tag:ngscollectors.ning.com,2014-10-20:1029239:Comment:930702014-10-20T20:48:42.158ZCharles Gannonhttp://ngscollectors.ning.com/profile/CharlesGannon
Danny,<br />
<br />
The quickest way is to dip the coin in an acid solution, preferably hydrochloric acid. I use a toilet bowl cleaner called The Works. It has about 9% Hc acid. I put just enough of the solution in a small acid resistant cup to cover the coin. Just a couple of seconds is all it takes. The coin will become very hot, so run cold water over the coin to delete the acid and cool the coin. Wear all necessary projection. Repeat if necessary. Keep the coin in an air resistant case and it will stay…
Danny,<br />
<br />
The quickest way is to dip the coin in an acid solution, preferably hydrochloric acid. I use a toilet bowl cleaner called The Works. It has about 9% Hc acid. I put just enough of the solution in a small acid resistant cup to cover the coin. Just a couple of seconds is all it takes. The coin will become very hot, so run cold water over the coin to delete the acid and cool the coin. Wear all necessary projection. Repeat if necessary. Keep the coin in an air resistant case and it will stay shiny for years.<br />
<br />
Good luck. In your article you mention r…tag:ngscollectors.ning.com,2014-10-20:1029239:Comment:929642014-10-20T15:12:45.558ZDannyhttp://ngscollectors.ning.com/profile/Danny
<p>In your article you mention removing the oxidation, which process has best worked for you?</p>
<p>In your article you mention removing the oxidation, which process has best worked for you?</p> Here is a Kodachrome photo by…tag:ngscollectors.ning.com,2010-03-30:1029239:Comment:242182010-03-30T05:08:30.949ZScott T. Shierhttp://ngscollectors.ning.com/profile/ScottTShier
Here is a Kodachrome photo by Bruce Dale (circa 1950's?). It shows the Explorer II gondola located in the Society's Explorers Hall.<br />
<br />
<br />
Rear of postcard states:<br />
<br />
<i>"Explorer II held the world's altitude record -- 72,395 feet -- for 21 years. In a 1935 expedition sponsored by the National Geographic Society and the U.S. Army Corps, the gondola carried Capts. A.W. Stevens and O.A. Anderson 225 miles across the Black Hills. National Geographic Society in Washington, D.C. exhibits this…</i>
Here is a Kodachrome photo by Bruce Dale (circa 1950's?). It shows the Explorer II gondola located in the Society's Explorers Hall.<br />
<br />
<br />
Rear of postcard states:<br />
<br />
<i>"Explorer II held the world's altitude record -- 72,395 feet -- for 21 years. In a 1935 expedition sponsored by the National Geographic Society and the U.S. Army Corps, the gondola carried Capts. A.W. Stevens and O.A. Anderson 225 miles across the Black Hills. National Geographic Society in Washington, D.C. exhibits this gondola."</i><br />
<br />
<br />
I am not sure of the date (when this post card was published; or when the actual image was photographed by B. Dale). Any guesses? Russ,
The photo used for the…tag:ngscollectors.ning.com,2010-03-30:1029239:Comment:241962010-03-30T01:03:39.979ZCharles Gannonhttp://ngscollectors.ning.com/profile/CharlesGannon
Russ,<br />
<br />
The photo used for the May 1936 supplement was on taken November 11, 1935 during the flight of the Explorer II Balloon .<br />
<br />
Charlie Gannon
Russ,<br />
<br />
The photo used for the May 1936 supplement was on taken November 11, 1935 during the flight of the Explorer II Balloon .<br />
<br />
Charlie Gannon