I was antiquing last weekend and I found a place that has two metal tack trunks. One is enormous, 2 feet high and wide probably. Metal edging and wood on the inside with a bunch of trays. Think it was navy blue. Good shape, no initials. They want $225 for it. They also have a smaller trunk which has initials on the front panel for about $125.
If anyone is interested I can go back and take pictures and get the maker name or give the location.