Deletion of Treehouse attachment bolt (2nd nomination)

Comment: This http://books.google.co.uk/books?id=7eP3jOihyjgC&pg=PA66 good source explains that "''As a whole, limb system designs have been referred to as “tree anchor bolts” or TABs. But it's the GL that started it all.''"  As there are obvious |alternatives to deletion, such as merger with treehouse, our |editing policy indicates that we should not delete this page
Stance: keep
Cited policy: Wikipedia:Deletion policy (WP:ATD||WP:PRESERVE)