UPDATE - 6/14@6:52PM: Paul at the Canadian Music Scene sent me a copy of the letter of authenticity that goes along with the ball, and it turns out that it's also signed by Alex and Neil too! They all signed it back in 2013 when Rush was inducted into the Rock Hall. You can check out the letter of authenticity including some pics of the ball here.
This year's Rushfest Scotland Scottish Rush fan convention will take place on June 17th in Bathgate, Scotland and all funds raised will go to support the Teenage cancer Trust. Geddy Lee has graciously donated a signed baseball to help them raise money for the charity, and you can enter for a chance to win this unique item by donating at least 5 GBP (8 USD, 10CAD, 6.5 EUR). The draw will be made by Geddy's brother Allan Weinrib via Skype at the Rushfest Scotland event. For all the details and to enter visit this website, and for more details on RushFest Scotland, visit their Facebook page.