Difficult to arrive at a value for furniture that is 'vintage/circa 1970's' and not yet considered antique, but Hibriten was a quality maker and should continue to at least maintain or go up in value over the years. Values differ depending on whether your insuring or selling. If your selling I would be in the $800-$1200 range. If your insuring, I would be in the $1500 range.
Visit your better furniture stores and see what something comparable is selling for retail, as I may be off base but this will give you an idea of what your up against............ .....best.......... .......Tim