The picture below shows two larger views of this 1776 - 1926 Liberty Bell 150th Anniversary Miniature Advertising Souvenir Bell. The bell appears to be made of copper and it has the ringer inside. It is marked on the two sides as follows:
LIBERTY BELL 1776 - 1926
150th ANNIVERSARY SIGNING OF THE DECLARATION OF INDEPENDENCE.
The miniature Liberty Bell measures about 1-1/2'' x 1-3/8'' x 1-3/16''. It appears to be in good condition with an aged patina as pictured.