Swiss cat ladder.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...r_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...cat_ladder.jpg
Previously:
https://www.homemadetools.net/forum/...614#post136352
https://www.homemadetools.net/forum/...856#post144354
https://www.homemadetools.net/forum/...465#post146970
https://www.homemadetools.net/forum/...844#post152478
https://www.homemadetools.net/forum/...090#post134285
