了解到的最新信息：
這套幣是一個(gè)經(jīng)營美國錢幣的很小的幣商賣出，幣商已經(jīng)記不得他是何時(shí)獲得的錢幣，幣放在一個(gè)大盒子里面，被認(rèn)為是低價(jià)值的世界錢幣。買到這套幣的收藏者是個(gè)狂熱的錢幣愛好者，幸運(yùn)的是這個(gè)收藏者意識(shí)到了這可能是一套上海版的精制幣。
這套幣與國內(nèi)的幣不同之處主要在于，這套幣是3枚一套連在一起塑封的，國內(nèi)的是單個(gè)品種連在一起的塑封。
poconopenn先生一些可能的推測(cè)：
84年4月26到30號(hào)，美國總統(tǒng)里根訪問中國，85年7月21到31號(hào)，李先念訪問美國，這套幣可能存放在一個(gè)很好的盒子，但是先前的擁有者更喜歡那個(gè)盒子因此賣出了錢幣而保留了盒子。 當(dāng)然這些只是推測(cè)，需要繼續(xù)考證才有可能得到真相。
以下為poconopenn先生信件一部分的原文，對(duì)這套幣的一些他的理解：“
Here is my understanding:
Usually, gift to VIP would packed in a nice box, such as Shenyang Mint proof set.
The Shanghai Mint was asked by the experts inside China about the histroy of this set many times. They were told this set was never issued.
Here are the differences between sets in China and this set in US.
The package is difference; double sealed but not connected in China set, while US set is in a connected double sealed pouches.
Here is my speculation to answer the question: Why this set with different package could be shown up in US?
From April 26 to 30, 1984, US President Ronald Reagan visited China and from July 21 to 31, 1985, Chinese President Li Xiannian conducted an official visit to the United States. Perhaps, this set was specially made for either staffs of Preisdent Reagan as a gift during his visit or as gift to US VIP during President Li's visit to US. The set might come with a nice gift box similar to Shenyang set. However, the previous owner might like the box better than the coin and decided to keep the box and sell the coins only. This is purly my speculation for discussion.”
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