FILE - This 2018 file photo provided by Stack's Bowers Galleries shows the obverse side of an Eliasberg 1913 Liberty Head nickel. On Wednesday, Aug. 15, 2018, the rare nickel sold for $4.5 million at a Philadelphia auction. (Stack's Bowers Galleries via AP, File)

File - In this June 12, 1939 file photo, these baseball stars were pictured as they attended the dedication and their induction into the Baseball Hall of Fame in Cooperstown, N.Y. Front row; Eddie Collins, Babe Ruth, Connie Mack, Cy Young; Rear row left to right; Hans Wagner, Grover Cleveland Alexander, Tris Speaker, Napoleon Lajoie, George Sisler and Walter Johnson. A baseball with the signatures of Babe Ruth, Ty Cobb, Honus Wagner and eight other legends of the game has sold for more than $600,000. The players all signed the ball on the same day in 1939, when they had gathered to become the first class to enter the Baseball Hall of Fame. SCP Auctions said Monday, Aug. 13, 2018, that it has sold for just over $623,000. That crushes the previous record of $345,000 for a signed ball, set in 2013. (AP Photo/File)

An investigator surveys the wreckage of a twin-engine aircraft that crashed Sunday near the South Coast Plaza shopping center Monday, Aug. 6, 2018, in Santa Ana, Calif. Five people were killed aboard the plane that crashed and there were no survivors. No one was hurt on the ground, as the plane went down and hit at least one unoccupied car. (AP Photo/Jae C. Hong)

FILE - This April 2017 file photo provided by NerdWallet shows Liz Weston, a columnist for personal finance website NerdWallet.com. (NerdWallet via AP, File)

The black-tie Apollo Celebration Gala is held under a Saturn V rocket at the Kennedy Space Center in Cape Canaveral, Fla., on Saturday, July 21, 2018. The event kicked off a yearlong celebration of the upcoming 50-year anniversary of the first moon landing, and featured a panel discussion by astronauts, an awards ceremony and an auction of space memorabilia. (AP Photo/Alex Sanz)

The black-tie Apollo Celebration Gala is held under a Saturn V rocket at the Kennedy Space Center in Cape Canaveral, Fla., on Saturday, July 21, 2018. The event kicked off a yearlong celebration of the upcoming 50-year anniversary of the first moon landing, and featured a panel discussion by astronauts, an awards ceremony and an auction of space memorabilia. (AP Photo/Alex Sanz)

Former Johnson Space Center Director Gerry Griffin, left, a flight director for all of the crewed Apollo missions, sits next to Apollo astronauts Harrison Schmitt, Rusty Schweickart, Walt Cunningham and Tom Stafford, from second from left, during a panel discussion at the Apollo Celebration Gala at the Kennedy Space Center in Cape Canaveral, Fla., Saturday, July 21, 2018. The event kicked off a yearlong celebration of the upcoming 50-year anniversary of the first moon landing. (AP Photo/Alex Sanz)