The following are in Adobe pdf format:
Lever styles - note the new assembly lever and rose are detailed - the old ref # is shown in brackets for assistance - IF you need the lever only ( no rose ) then use the old number. Style of lever and dimensions are constant, it is only the rose and lever assembly which are factory fixed and cannot be seperated that is the new #.
Note on 3506.
Legacy 3006 levers had a flat end on the return to the door and are no longer avialable - they were replaced ( aprrox 1994 with the radius end on the return and are known as 3006N ) . The 3506 follows the design of the 3006N.