Charles Kohen, 92, who operated the Hobby Shop in Washington from 1920 until retiring in 1965, died Aug. 20 at the Veterans Administration Hospital at Perry Point, Md., after a stroke. He had been a patient there for several months.

Mr. Kohen, who lived in Washington, was born in Russia and came to this country as an infant with his family, which settled in Philadelphia.

At the age of 17, he moved to Washington and became a gold leaf gilder, helping to restore paintings and frames. He worked for several galleries here.

After serving with the U. S. Army in France in World War I, he returned to Washington and opened his first Hobby Shop on Pennsylvania Avenue NW. He sold stamps and coins, autographs, manuscripts and antiques.

Political figures often met in the back of his store to discuss the news of the day. Later he moved the shop to 15th and F Streets NW and then to 17th Street, close to the White House during World War II. President Franklin D. Roosevelt called him to the White House on occasion to talk about stamps.

The last location for the Hobby Shop was on Wisconsin Avenue NW. During his tenure as proprietor, Mr. Kohen had made gifts of President Coolidge manuscripts, which he had purchased, to the Library of Congress and of silver, cylinder records and other items to the Smithsonian Institution and to Syracuse University.

During World War II and later he had served on the D.C. Selective Service board.

He was a member of Costello Post No. 15 of the American Legion, the Forty and Eight, the Veterans of Foreign Wars and the Jewish War Veterans. He had arranged for numerous entertainment shows for those organizations over the years.

He is survived by his wife of 50 years, the former Sarah Cohen of Washington, and a brother, R. Reuben Kohen of Atlanta.