Ton Up day is on Sunday 28th June from 10 am to 5 pm. It's at Jack's Hill cafe, just North of Towcester on the A5. Click on the link for the poster and to get to their Facebook page.
https://www.facebook.com/photo.php?fbid=10156850918537689&set=pcb.1790842591048267&type=3&theater&ifg=1 (https://www.facebook.com/photo.php?fbid=10156850918537689&set=pcb.1790842591048267&type=3&theater&ifg=1)
This event was founded by the late Johnny "Chester" Dowling, who was a BSA man.