As America celebrates its 250th anniversary, Robert L. Rodriguez combines cutting-edge science, numismatic research, and detective work to uncover new evidence about one of the nation's most enigmatic artifacts.
Auction lot photos of this item graded MS66
Coin Value History
1915-S G$50 Panama-Pacific Expo, Octagonal MS66
1915-S $50 Panama-Pacific 50 Dollar Octagonal MS66 PCGS....
MS66
PCGS
$222,000
1915-S $50 Panama-Pacific 50 Dollar Octagonal MS66 NGC....
MS66
NGC
$180,000
1915-S $50 Panama-Pacific 50 Dollar Octagonal MS65 NGC. ...
MS65
NGC
$158,600
1915-S $50 Panama-Pacific 50 Dollar Octagonal MS65+ NGC. CAC....
MS65
NGC
$228,000
1915-S $50 Panama-Pacific 50 Dollar Octagonal MS67 NGC. ...
MS67
NGC
$258,500
1915-S $50 Panama-Pacific 50 Dollar Octagonal MS64 NGC. CAC. ...
MS64
NGC
$115,900
1915-S $50 Panama-Pacific 50 Dollar Octagonal MS64 PCGS. ...
MS64
PCGS
$122,000
1915-S Panama-Pacific Exposition $50. Octagonal. MS-63 (NGC).
MS63
NGC
$91,500
1915-S Panama-Pacific Exposition $50. Octagonal. MS-63 (PCGS). CAC. OGH.
MS63
PCGS
$106,750
1915-S $50 Panama-Pacific 50 Dollar Octagonal MS62 PCGS. ...
MS62
PCGS
$85,400
1915-S $50 Panama-Pacific 50 Dollar Octagonal AU58 PCGS....
AU58
PCGS
$58,800
1915-S Panama-Pacific Exposition $50. Octagonal. MS-62 (PCGS). CMQ.
MS62
PCGS
$72,000
1915-S $50 Panama-Pacific 50 Dollar Octagonal AU58 PCGS....
AU58
PCGS
$55,200
1915-S $50 Panama-Pacific 50 Dollar Octagonal AU53 PCGS. ...
AU53
PCGS
$49,200
1915-S Panama-Pacific Exposition $50. Octagonal. EF-45 (PCGS).
XF45
PCGS
$52,800
(1915) Panama-Pacific International Exposition Five-Coin Copper Frame. ...
$9,000
1915-S Panama-Pacific Exposition $50. Octagonal. AU-55 (PCGS).
AU55
PCGS
$51,600
1915-S $50 Panama-Pacific 50 Dollar Octagonal -- Altered Surface -- NCS. Unc Details. ...
MS60
$37,200
1915-S $50 Panama-Pacific 50 Dollar Octagonal MS61 NGC. ...
MS61
NGC
$57,600
$50 1915-S PANAMA-PACIFIC. OCTAGONAL. PCGS AU53
AU53
PCGS
$52,250
1915-S Panama-Pacific Exposition $50. Octagonal. AU Details--Cleaning (PCGS). Secure Holder.
$54,050
1915-S $50 Panama-Pacific 50 Dollar Octagonal AU55 PCGS. ...
AU55
PCGS
$58,750
1915-S $50 Panama-Pacific 50 Dollar Octagonal -- Improperly Cleaned -- NCS. AU Details. ...
AU50
$32,200
Panama-Pacific Exposition Box of Issue. VF-EF.
VF20
$510
An Original Leather Box for a Five-Piece Panama-Pacific Commemorative Coin Set.
F12
$727
Greysheet News
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Events
Heritage Auctions: US Currency Tuesday Select Auction
Location: Heritage Auctions
Tuesday, September 1, 2026
Heritage Auctions: World Paper Money Tuesday Select Auction
Location: Heritage Auctions
Tuesday, September 1, 2026
Heritage Auctions: World & Ancient Coins ANA Signature Auction & Platinum Session
Location: Heritage Auctions
Tuesday, September 1, 2026





