To find out if an etching you have is real, you should:
* Identify the artist: Look for the artist's signature or initials.
* Research the artist: Look up the artist in art reference books, online databases, or through reputable auction houses.
* Examine the etching: Look for signs of age and wear, as well as any unique characteristics of the artist's style.
* Consult with an expert: Take the etching to a qualified art appraiser or dealer for authentication.
* Check for any markings: Look for any marks or stamps on the back of the etching, which may indicate its origin or authenticity.
Remember: It's always best to err on the side of caution and consult with an expert if you are unsure about the authenticity of an etching.