Here are six bar pins from the early 1900's or late 1800's. They are all gold colored ,some are likely gold filled. All have "c" clasps and have some signs of wear. The purple glass pin is 1 3/8 inches long and just under 1/4 inch high. There's some wear on the gold coloring of the bezels. The pin with the rhinestones is 2 1/8 inches long and 3/4 inch at the highest. The delicately etched pin is 3 inches long and 1/4 inches high. It's likely gold filled, but there's wear on each end - less noticeable that it appears in my photos.
The pin below it with the decorative edge is 2 1/8 inches long and 1/4 inch high. It's the only pin marked - it has a 1910 patent date. The next floral pin is 1 1/4 inch long and 1/16 inch less than 1/4 inch high. Its outer bottom rim is partially bent inward. The last pin was made to hold a name tag in the center, and it's flaws would be covered by the paper, An interesting and varied lot of old bar pins!