What are the types and prices of the three antique firearms mentioned?

March 18th, 2023

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