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Walter Holmes

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Posts posted by Walter Holmes

  1. I have an 1892 Columbian Exposition commemorative half dollar. The reverse is tilted towards the one o’clock mark rather than being in line with the obverse. I was wondering what causes this misalignment and is there a specific term to describe this anomaly? As noted in the picture I called it reverse off center for lack of a better understanding.  Thank you

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  2. On 7/25/2022 at 4:22 PM, VKurtB said:

    I keep intending to shop for Greek coins in CNG auctions, but I end up bidding on British more often. I can get to see them in the hand when I get back to Pennsylvania, or remotely when it’s a case in which condition is less of an issue. Example: Plantagenet kings. I imagine William Wallace paintin’ his face bleu and charging at Stirling Bridge. 

    Having ancestors that were Border Reivers I  am well versed on the Platagenet Kings. It must be a marvelous collection. Rich in history with hero's and scoundrels. Wallace swinging his infamous claymore as he faced  the enemy. 

  3. On 7/25/2022 at 11:03 AM, VKurtB said:

    This is NOT only directed at you. Gawd knows it is a curse on this hobby for decades, but this eternal fascination with anything doubled is simply out of control and needs to be tamped down. I really wonder if this was much of a “thing” before the famous 1955 cent. 

    Lol! To be honest I didn’t pay much  attention to the doubling until a coin dealer at a show insisted it was a DDO/ DDR. Such error coins aren’t my thing. I prefer straight up graded Morgans and Greek ancients. 

  4. I have a complete set of 36 sterling silver presidential medallions. Each weighs around 37 grams. On the edge it reads Wittnauer Sterling c 896. On the printed sheets of each president it has the name American Bank Note Company. The series starts with Washington and ends with Nixon. I cant find any information about this set online. Would anyone know the history, mint,  place of origin, etc. Thank you

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  5. Thank you for taking the  time  to respond to my inquiry. I just started delving in ancients and decided upon slabs to ensure, i hope, authenticity.  Bought the lot and wanted to include them in my collectors insurance policy. Im just not sure if the purchase price is acceptable. Best I dig into the auctions for   similar coins to accomplish that task. Perhaps it will allow me to develop a comfort zone to move outside of slabs and actually hold the coin in my hands. Thanks again. 

  6. Corrosion Inhibitor Bags. Different sizes, 8x10 is zippered like a freezer bag. “Composed of a polymer matrix to which copper particles are bonded forming a reactive film that neutralizes all corrosive gases from passing through, neutralizes contaminants, blocks ozone and retards bacteria production.” Museum quality for non-ferrous metals. 

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  7. On 5/31/2022 at 8:07 PM, RWB said:

    The detergent reaction suggests organic contamination -- but in a U.S. Mint-sealed container? Are the containers actually air tight?

    Sorry i should have been more specific. The silver bar was produced by the Republic Metals Corporation which filed for bankruptcy and their assets were  acquired by ASAHI Holdings in 2019. The bar was sealed by RMC. There were no apparent leaks, but apparently it was not air tight. Ive never seen organic contamination this color. Thank you for suggesting that. 

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  8. I know this isn't a coin, however i am hoping an expert could explain the chemical reaction that has happened. The silver bar was orange/red colored on a reeded  edge. It was sealed by the  mint. As it didn't appear to be normal tarnishing I broke the seal and washed it  in distilled water with a spritz of dawn detergent. Immediately the spritz foam turned orange/red. Upon rinsing the discoloration had completely disappeared and the bar looks like new. 
     

    I am aware of green slim caused by PVC as i have a couple of Lexington commemoratives that had the slime problem.  Is the problem on the bar similar to the reaction with pvc, sulfer maybe? Would appreciate any thoughts on this.  

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