Matti,

I used the LHWARP utility , it is an exact copy (albeit compressed) of the
original disk. The LHWARP used is the later version of two on Fish 318.

To deLHWarp the archive, place a blank disk in df0: and use

     lhwarp Write 0 ham1

                  ^use 0 for df0:
                       1     df1:
                       2     df2:
                       3     df3:

This should recreate an exact copy of the original disk track by track.

Cheers, John.