28 pc Brass/Inlaid Wood Flatware In Storage Box

The 28 piece set includes place settings of knife, fork and spoon for eight, a two piece set consisting of meat knife and two prong fork and another set consisting of three prong fork and serving spoon. These last two pieces have twisted handles from the base of the spoon/fork down to the beginning of the handle. All pieces are intact and though some wear, no pieces have scratches, dulled knives, chips or bends.The wood in all pieces are smooth with no chips or cracks and all the rivets are intact.  The outside of the box has a green reptile looking covering that shows some wear, but there are no major tears or missing pieces. the box itself is intact. The latches, hinges and handle are all in working order with no cracks, dents, or chips. The handle appears to be plastic, reminiscent of bakelite. The interior red velvet is well attached to the box and has no tears. The velvet when the spoon and forks slide into the bottom holders are a bit worn but still adhered. One person I spoke with from a local antique store thought it was from Vietnam, but could not give me much more information. I have had a couple of people who think the wood was cherrywood or rosewood. Could find no markings either in/on the box or on the individual pieces. Any information as to its history (or even where to begin to research) and its value would be great!