So I just stumbled upon this Amazon book; "Razor blade banks: An illustrated history and price guide". A 59 page long (or rather short?) book about collectible blade banks. Written by Lester Dequaine and published by the National Shaving & Barbershop Museum (1998). Collecting blade banks is nothing I would be interested in. Besides the AD's are more then enough to clutter shelves and keep your wallet permanently on the intensive care. Nevertheless, it's still interesting if your obsessed with shaving gear.