Aug 23 (Reuters) - Wallbridge Mining Co WM.TO
* Wallbridge signs a heads of agreement for $2,500,000 loan
* William Day also intends to participate in Wallbridge's prospectus offering in amount of up to about $450,000
* Wallbridge Mining Co Ltd says additionally, William Day agreed to participate in Wallbridge's current financing efforts to a maximum of $1 million Source text for Eikon: ID:nCNWkBx1ma Further company coverage: WM.TO