Jani
This is courtesy the IGC:
Name  Benjamin Edwards  
Other Names  Benjamin Edwrds Jnr; Benjamin Edwards (Representatives); Benjamin Edwards  
Address1  48 1/2 Newton Street  
Address2  48 1/2 Newton Street & 28 1/2 Newton Street  
Address3  50 1/2 Newton Streeet  
City/Town  Birmingham  
United Kingdom  
Trade  Gunmaker  
Other Address    
Dates  1887-1936  
Notes  
Benjamin Edwards worked for William Lee of Lancaster Street, Birmingham. In 1887 he established his own business at 48 1/2 Newton Street, Birmingham. It has been suggested that he occupied additional premises at 283 (?) Newton Street in about 1894 but this has not been confirmed. In about 1897 he occupied additional premises at 28 1/2 Newton Street.
Benjamin died in about 1900 and his son Benjamin Edwards Jnr took over moving the business to 50 1/2 Newton Street, this address was confirmed from 1904 to 1924. From 1925 to 1928 the business traded as Benjamin Edwards (Representatives), from 1929 to 1936 when it closed, it traded as Benjamin Edwards.
 
Not much, but better than what you knew before!
Tim