Grey Flannel's Summer Games auction featuring top-tier game-used sports memorabilia closes this week on Wednesday, June 24. More than 900 lavishly illustrated lots representing all major sports are currently available to view online at www.greyflannelauctions.com.

"This could end up being our best auction ever," said Richard Russek, President of Grey Flannel Auctions. "It's very unusual for an auction of any type to have a true headliner in multiple categories, but this sale has as many as eight that fit that description. Each one is from a different specialty category and has the potential of reaching $100,000."

Game-worn apparel from a Who's Who of basketball legends is led by Lot #152, a pair of sneakers that the one and only Michael Jordan wore during the 1984 Olympics in Los Angeles. The historical kicks were signed and gifted to the team's ballboy in the locker room following the medal ceremony. The recipient, who has owned the sneakers for the past 31 years, provided a detailed letter of provenance that will convey to the new owner. The star lot of Grey Flannel's auction is entered with a $50,000 reserve.

While on the subject of basketball royalty, there's no overlooking three other all-time greats whose game-worn jerseys are among the auction's coveted Premier Lots. The auction will open with Wilt Chamberlain's game-used Philadelphia Warriors durene home uniform from the 1961-62 NBA season, the same season in which "The Stilt" set the NBA single-game scoring record with his legendary 100-point performance. Perhaps the most dominant player the NBA has ever seen, Chamberlain led the league with a still-to-this-day record 50.4 points per game. The exceedingly rare uniform shows outstanding use and carries an auction reserve of $10,000.

Immediately following as Lot #2 is Bill Russell's game-used Boston Celtics durene road jersey dating to the early 1960s, when Russell and the Celtics towered over the NBA and won eight consecutive Championships. During that stretch, Russell – regarded as the most exceptional defensive center in NBA history – won MVP honors five times. To Grey Flannel's knowledge, the jersey in their auction is one of only two of Russell's "BOSTON" green road jerseys known to exist, and is the only one available for public sale. The extremely rare jersey shows desirable evidence of game use and is in excellent overall condition. Reserve: $10,000.

Add to this already rich lineup of hardcourt treasures Lot #173, Julius "Dr. J" Erving's game-used ABA New York Nets jersey from the final season of the ABA. The jersey has been photo-matched to the 1975-76 season in which Erving and his Nets teammates were crowned champions of the ABA and Dr. J earned both the regular season and playoff MVP honors. The exceedingly rare jersey shows outstanding use and is offered with a $10,000 reserve.

Moving to the gridiron, Grey Flannel's auction trove is topped by Lot #174, a photo-matched, game-used and autographed home uniform worn by "The Golden Arm," Johnny Unitas. The durene uniform shows extensive game use and has undergone numerous vintage repairs, so it is more than plausible that this jersey was used for multiple seasons including the 1958 double-overtime NFL Championship game against the New York Giants, better known as "The Greatest Game Ever Played."Reserve: $10,000.

The abundance of auction highlights continues with these gems:

Lot #283 – The actual golf ball used by Tiger Woods to hole out and win the 2005 Masters. On the first hole of a playoff against Chris DiMarco, Woods birdied the ball for the win, setting off a giant fist pump and a raucous celebration with his caddie, Steve Williams. In the midst of the celebration, Williams reached into the hole, pulled the ball out, and threw it into the stands where the consignor caught it. The ball was widely publicized and it has remained in the consignor's possession to this day. Reserve: $5,000.

Lot #359 – A single-signed baseball signed by Hall of Famer Charles "Kid" Nichols that dates to the early 1890s, when Nichols was just starting his pitching career with the Boston Beaneaters. Nichols holds many claims to fame. He was the youngest pitcher to join the 300-Win Club, his 361 wins rank 7th on the all-time list, and amazingly, in his 17 seasons, Nichols was never replaced by a relief pitcher. Nichols also had a Major League record seven 30-win seasons during the 1890s. This is the earliest known example of a Nichols signed baseball. The 115-year-old ball comes with provenance from the extended Nichols family and carries a reserve of $5,000.

Lot #360 – A multiple-signature baseball dating to the 1931 United States All-Stars Tour of Japan. The baseball features the signatures of eight Hall of Famers: Lou Gehrig, Mickey Cochrane, Frank "Lefty" O'Doul, Rabbit Maranville, Al Simmons, Fred Lieb, George "High Pockets" Kelly and Lefty Grove. The baseball is in immaculate condition. Jimmy Spence of JSA stated that this is the best example of a 1931 U.S. All-Stars Tour of Japan baseball that he has ever seen. A true piece of baseball history, it is offered at auction with a $5,000 reserve.

Lot #362 – A baseball signed by 26 members of the World Champion 1928 New York Yankees, including eight Hall of Famers: Babe Ruth, Lou Gehrig, Tony Lazzeri, Earle Combs, Waite Hoyt, Leo Durocher, Herb Pennock, Stan Coveleski. "Saying that this baseball is in exceptional condition is an understatement," Richard Russek remarked. Its reserve is $5,000.

Lot #529 – John McGraw's New York Giants cap dating to 1921, when he managed the team to a World Series title – the franchise's second title and the first of back-to-back titles for the team. The ultra-rare style of gray wool road cap with navy blue bill, sans pinstriping, was unique to the 1921 season. The cap is in fantastic all-original condition and shows excellent wear. Reserve: $5,000.

A special section of the auction is devoted to testosterone-charged memorabilia from some of Hollywood's most memorable films. Highlights include:

Lot #315 – Kirk Douglas' screen-used Roman sword and scabbard prop from the 1960 thriller "Spartacus". The metal sword has a beautifully crafted wooden handle and is accompanied by an ornate red scabbard with Roman attributes in brass. The sword was originally sourced from set personnel and carries a reserve of $2,500.

Lot #321 – Tom Cruise's racing helmet from the 1990 stock car drama, "Days of Thunder". As Cole Trickle, Cruise wore this helmet in the first part of the film. It has been video-matched and carries a reserve of $2,500.

Lot #322 – Arnold Schwarzenegger's screen-worn tactical vest from the 1985 action classic "Commando". The iconic vest features three prop grenades, multiple prop shotgun shells and seven camouflage pouches. Reserve: $2,500.

Lot #324 – Eddie Murphy's screen-worn Detroit Lions letterman jacket from the 1987 action-comedy sequel "Beverly Hills Cop II". The remarkable jacket has been photo-matched to several scenes in the film and carries a reserve of $1,000.

Lot #330 – Screen-worn Army fatigues worn by two-time Academy Award winner Denzel Washington's in the 1996 action-drama "Courage Under Fire". The fatigues have been photo-matched to several scenes in the film and are entered in the sale with a $1,000 reserve.

The fully illustrated electronic version of Grey Flannel's 2015 Summer Games Auction catalog is available to view online at www.GreyFlannelAuctions.com. Bidding is open and runs through, including June 24. For additional information, call 631-288-7800, ext. 223; or email [email protected].