photo of Tiger II track shoes, showing the two different "contact shoe" and "connector link" designs used in the Tiger II's continuous tracks. |Source...
Bicycle Stockings, Shaw Stocking Company, Lowell, Massachusetts 1887 ad - from, The bicycling world (IA bicyclingworld151887bost) (page 12 crop).jpg....
seat rescue assembly attached to a wench on a helicopter - from page C-9, FM 90-5 Jungle Operations (Field Manual No. 90-5), 1982 (page 126 crop).jpg....