At last Springfield Mid-Ohio Show, I was purchasing the wooden trolleys from San Franscisco.. some wondered why I was purchasing so many...here's the answer. I wanted to thank the authors of Wood Amongst the Wires for their support and permission to use their materials. If San Francisco Woods interest you, their book is a must read. It is well researched and written. Sorry for the plug, but I want interested collectors to know about it. I only became aware of it through another collector about 8 months ago.