Victorian buttons, Edwardian buttons and others
Items, artifacts, relics, anything over 100 years old as i have been told and a little research are referred to as antiques. Everything less than 100 years is Vintage and I think a car over 25 years is called a classic......thought I throw that in there. :) A few of the buttons are plated with au gold but I don't guarantee this. But more important are the levels of details. The time it took to cut all those fine details into a die is quite remarkable considering the day and age it was done in, the 19th century, mid to late 1800's and early 1900's for the Edwardian era..... this is just one reason why people collect sewing buttons. Another is, just how many have survived. I saw these at an auction and fell in love with them. You can inquire about the ones I have at; firstname.lastname@example.org but be warned, I'm not an expert in buttons.
The National Button Society states the following are the official sizes for buttons.
Large: 1 1/4" and up
Medium: 3/4" to 1 1/4"
Small: 3/8" to 3/4"
Diminutive: Under 3/8"