- Get Involved
All Smithsonian museums will be open today, March 6. The National Zoo will open at noon today.Skip navigation
Subject: Envelope with handwritten label marking "Marx" and "KM"
Date: unknown, foud in Adolf Cluss’s possession at time of his death in 1905.
Description: 4X81/2 envelop with handwritten label marking "Marx" and "KM"
Author: Adolf Cluss
Source, Owner: William S. and Donna Shacklette
Medium: Photo reproduction of original object.
Timeline Category: Political