Here's some pictures of the current reproduction compared to the original.
Reproduction Clamp is on the top.
1. The reproduction screw is about a quarter inch longer than original. That's why when the clamps are tight it looks odd because the bolts is too long.
2. The markings on the head of the original screws are different than the reproductions.
3. Reproduction clamps are stamped 37 and the originals are stamped 10.
4. The wittek font on the reproduction is much different from the originals.