Ex Eliasberg, as noted on the insert. This coin is one of the VERY BEST 1858 Proof Half Dollars period. For sure, the quality is SUPER HIGH END! This coin has no peers. Strong mirrors beam boldly all over. The mirrors offer problem free surfaces and have strong clarity. When you twirl the coin, the mirrors look like a freshly formed sheet of ice. The flash is strong. Both sides are evenly covered by a moderate and pretty original mix of blue/violet/reddish gold/champagne colors. Miss Liberty and the details are fully struck and do exhibit light frost. The eye appeal is superb! ONLY 100 pieces were minted. PCGS 2, NGC 4, CAC 2. This is the ONLY PR66+ graded by PCGS. There are no auction records for any PCGS CAC PR 66+ ever selling. The published price guides are wrong as none have ever sold. CU is $26,500-which we do not know how they got that number. This will be one heck of an addition to ANY GEM Proof Half set. It can easily make a box of 20. You will see fewer of these than an 1804 $1 selling! And it is from one of the greatest collections ever formed-Eliasberg. An unbeatable coin. Cert. Number 46915870 PCGS # 6412