I translated the unit files to the ECC encoding:
  
    mkdir L16-ecc
    
    foreach f ( L16/f[0-9]* )
      echo "$f -> L16-ecc/${f:t}"
      cat ${f} \
        | fsg2ecc \
        > L16-ecc/${f:t}
    end

  Let's collect the textual units that comtain text or labels
  of each hand:

    cat L16/page-table.dir \
      | egrep '^[^:]*:[^:]*:[^:]*:[^:]*:[^:]*(labels|words):' \
      > .units-labels.dir
    cat L16/page-table.dir \
      | egrep '^[^:]*:[^:]*:[^:]*:[^:]*:[^:]*parags:' \
      > .units-parags.dir
    cat L16/page-table.dir \
      | egrep '^[^:]*:[^:]*:[^:]*:[^:]*:[^:]*(lines|titles):' \
      > .units-lines.dir

    foreach let ( A B X )
      set pat = "${let}"
      if ( "${let}" == "X" ) set pat = '[^:]*\?'
      cat L16/page-table.dir \
        | egrep ':'"${pat}"':[^:]*:[^:]*(labels|words):' \
        > .units-labels-${let}.dir
      cat L16/page-table.dir \
        | egrep ':'"${pat}"':[^:]*:[^:]*parags:' \
        > .units-parags-${let}.dir
      cat L16/page-table.dir \
        | egrep ':'"${pat}"':[^:]*:[^:]*(lines|titles):' \
        > .units-lines-${let}.dir
    end
    
  Let's gather all panel numbers that occur in the text.
  
    cat L16/page-table.dir \
      | sed -e 's/:.*//g' -e 's/\..*$//g' \
      | uniq \
      > .panels.dir
    
    cat L16/page-table.dir \
      | egrep '^[^:]*:[^:]*:[^:]*:[^:]*:[^:]*(labels|words):' \
      | sed -e 's/:.*//g' -e 's/\..*$//g' \
      > .panels-labels.dir
    cat L16/page-table.dir \
      | egrep '^[^:]*:[^:]*:[^:]*:[^:]*:[^:]*parags:' \
      | sed -e 's/:.*//g' -e 's/\..*$//g' \
      > .panels-parags.dir
    cat L16/page-table.dir \
      | egrep '^[^:]*:[^:]*:[^:]*:[^:]*:[^:]*(lines|titles):' \
      | sed -e 's/:.*//g' -e 's/\..*$//g' \
      > .panels-lines.dir

  From them we create a script to convert panel numbers to 
  sequential page numbers (000 to 263):
  
    foreach f ( '' '-parags' '-labels' '-lines' )
      echo '#\! /n/gnu/bin/sed -f' \
        > panel${f}-to-page
      cat .panels${f}.dir \
        | gawk 'BEGIN {pg=0} /./ {printf"s/<%s>/<%03d>/g\n", $1, pg; pg++}' \
        >> panel${f}-to-page
      chmod a+x panel${f}-to-page
    end
  
    --- panel-to-page ------------------------
    #! /n/gnu/bin/sed -f
    s/<f0>/<000>/g
    s/<f1r>/<001>/g
    s/<f1v>/<002>/g
    s/<f2r>/<003>/g
    s/<f2v>/<004>/g
    s/<f3r>/<005>/g
    s/<f3v>/<006>/g
    s/<f4r>/<007>/g
    ...
    s/<f113v>/<260>/g
    s/<f114r>/<261>/g
    s/<f114v>/<262>/g
    s/<f115r>/<263>/g
    s/<f115v>/<264>/g
    s/<f116r>/<265>/g
    s/<f116v>/<266>/g
    ------------------------------------------

  Hm... In order to make the results easier to describe, I should
  rename the textual unit files with standard panel numbers 
  (like f77v) rather than modern page numbers (like 114).