Installation "how-to" for Highpoint Side Rail Hinge with Stay from Woodcraft
Sorry for the long length, I will try and edit down and add bookmarks.
Hinge from Woodcraft:
https://www.woodcraft.com/products/highpoint-side-rail-hinge-with-stay-solid-brass-pair?gclid=CjwKCAiAqIKNBhAIEiwAu_ZLDp3E1DaWitaF5oxA-np1VA9DHBQeQAGfbzuowGuXHsRGWfBzkcRd0xoCj00QAvD_BwE