Double-cross originates from signing documents – Days Gone By
Doublecross (1956 film) - Wikipedia
A cross-verified database of notable people, 3500BC-2018AD
File:Several hundred Philadelphia school children form living TB double cross.jpg - Wikipedia
Coat of arms of Slovakia - Wikipedia
Double Cross (TV Series 2020– ) - IMDb
File:Coa Illustration Cross Double pattee fitchy 3.svg - Wikimedia Commons
Two-barred cross - Wikipedia
File:The Columns of the Gediminids (Gediminas) and the Double Cross of Jogaila (coats of arms of Lithuania).jpg - Wikipedia
David Cross, Arrested Development Wiki
Why does Slovakia have double crosses? - Quora