Sabrina Stone and Sylja Kuryakin Anyone Have More of These?

These were among the first bondage photos I found on the early Internet. I believe that these women are Harmony models Sabrina Stone and Sylja Kuryakin. I have been on the lookout ever since for more photos in the set. I *think* that they may have come from a Harmony publication called "Ladies in Barefoot Bondage" issue #6.