I just acquired what I believe is an authentic 1860 work by Gustave Courbet, a landscape with figurines. How can I confirm its authenticity and determine its value for insurance purposes?

June 5th, 2023

I inherited a number of flow blue plates, platters, etc. I am trying to figure out if they have any value. I do not know the age of the items, but they are in good condition with no chips or cracks. Do I have to join first?

October 8th, 2023

I have some coins that appear to be rusting. Are they replicas, and could the rust be caused by being stored in a cutlery drawer?

November 26th, 2024

I'm an 85-year-old American seeking historical information about a beautiful watch purchased from Knak & Sohn Jewelry in Berlin between 1940 and 1945 by my German great uncle. The watch has the numbers 936 and 31143 on the back and is a small ladies' watch with many tiny diamonds. I have detailed photos for identification and would like to know the e-mail address of the company or any historical information available.

June 20th, 2024

I have several handmade rugs (kilims) and a wall hanging that I'd like more information about their history, as well as an appraisal of their value. The items appear to be in very good condition and could be from Latin or South America, possibly inherited from family members who lived in Guatemala. I can provide photos of the items.

December 16th, 2023