Check outwww.trimfabric.com They may have what you're looking for.
All 4
No. The tradition of leaving the bottom button of a coat undone started as a fashion choice. Coats are designed to flare away at the bottom, since the hips are (generally) broader than the waist,...
Either button two only, or all buttons.
the top 2, never the last button
Maybe from the Pendleton Outlet in Nebraska City, NE