How can you tell how old a mirror is?

To tell how old a mirror is, examine its back. Many pieces will feature a maker's mark or logo. By researching the mark or logo using trusted online resources, you may be able to determine who the manufacturer was and when they were active. Wooden backs often signify that a mirror is an antique, while paper backings are usually found on newer mirrors. If you need help dating a mirror, consult a certified appraiser or experienced antiques dealer. Shop a wide range of mirrors on 1stDibs.