An excellent source of fish glue is:

  Columbia Organ Leathers
  915 Lancaster Avenue
  Columbia, PA  17512
  tel: 1-800-423-7003
  fax:  717-684-4428

Current catalog lists the following prices.

  Pint     $5.95
  Quart   $10.95
  Gallon  $33.95

Write or call them for their free leather catalog and sample book.
Nice folks to do business with and their prices are competitive.

Ed Gaida