Wonder why some briefcases stay sharp after years of use? It often comes down...

https://bizzmarkblog.com/why-do-briefcase-corners-wear-out-first-understanding-abrasion-resistance-and-quality-factors/

Wonder why some briefcases stay sharp after years of use? It often comes down to details like full-grain vegetable-tanned leather that develops character over time and solid brass hardware that won’t easily break or tarnish