Oaklisp
A portable object-oriented Scheme by K. Lang and Barak Perlmutter of Yale. Oaklisp uses a superset of Scheme syntax. It is based on generic operations rather than functions, and features anonymous classes, multiple inheritance, a strong error system, setters and locators for operations and a facility for dynamic binding.
Version 1.2 includes an interface, bytecode compiler, run-time system and documentation.
ftp://f.gp.cs.cmu.edu/usr/bap/oak/ftpable/, for Amiga.
["Oaklisp: An Object-Oriented Scheme with First-Class Types", K. Lang et al, SIGPLAN Notices 21(11):30-37 (Nov 1986) (OOPSLA '86)].