Bob, I believe what you will find here is that all of Heiko's examples, excluding his "Auob" Bar are 18/19mm. wide (minimum). The Auob bar shown by Heiko is probably 15mm. The Auob bar shown by Heiko is a poor quality photo and I can't imagine making a determination from this picture alone. Having said that, there's either deformities in the photo, or the bar itself (background) that do not come close to matching the quality of the 15mm. bars I have shown. Notice that the "Venezuala" bar offered by Nordwind doesn't match any of the examples shown by Rick, Heiko, or myself and is at least 19-20mm. wide. In addition, the China mini clasps shown by Heiko are from one maker. The Afrika clasps are from one maker in posts 46 & 47 and (probably) a different maker from the China clasps. The Auob Bar photo is possibly the same maker as the two shown by me. A third maker. Note that of the bars shown by both Heiko & Rick Research, are at least 18-20mm. wide. Many of these photos are not of "diagnostic" quality. One cannot compare China Clasps with Afrika. One cannot compare full-size clasps with miniatures. One cannot compare 3 different makers of Afrika clasps and expect there to be uniformity. Uniformity of a single type from a single maker, sure. But from 4 different makers?? (1 China, 3 Afrika)??