Different Holes Buttons

fter all, the way buttons were manufactured 200 years ago certainly differs from today's techniques. Clothing buttons were made from hand cut glass, molded clay and hand-decorated porcelain in the past, among other materials. This contrasts starkly with the machine molded plastic buttons we find on most modern garments. By and large though, buttons in odd shapes and sizes, comprised of unusual materials, or of an unusual origin can be the most appealing.
Two Hole Hollow Eye Buttons have round circular sewing wells of varying size and depth. 
Three Hole Buttons.  
Four Hole Buttons with Smooth Beveled Rims.