ftp.ntua.gr:/mirror/ctan/fonts/unsupported/halftone/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[TXT] halftone.mf                                      17-Jan-1986 02:00  969   
[   ] imralf.mf                                        17-Jan-1986 02:00   56   
[   ] imhalf.mf                                        17-Jan-1986 02:00   56   
[   ] ddralf.mf                                        17-Jan-1986 02:00   54   
[   ] ddhalf.mf                                        17-Jan-1986 02:00   54   
[   ] aphalf.mf                                        17-Jan-1986 02:00   50
Apache/2.2 Server at ftp.ntua.gr Port 80