Just saw this today but seems a bit pricey to say the least for a letter from '81. I am not at home with the actual worthiness of these letters, so I wonder what does this worth actually?
http://www.ebay.com/itm/CHARLES-BUK...471?pt=LH_DefaultDomain_0&hash=item35dfe2c52f
http://www.ebay.com/itm/CHARLES-BUK...471?pt=LH_DefaultDomain_0&hash=item35dfe2c52f