Oaklisp

K. Lang and B. Perlmutter

A portable object-oriented variant of Scheme, syntactically a Scheme superset. It is based on generic operations rather than functions. Anonymous classes.

"Oaklisp: An Object-Oriented Scheme with First-Class Types", K. Lang et al, SIGPLAN Notices 21(11):30-37 (Nov 1986) (OOPSLA '86).