1959 vs. 1960 Alcort Sailfish Identifier?

A long-time family friend just blessed me with his elderly parent's "Alcort, Inc. Sailfish" yesterday.

I've since studied the "Evolution of the Sunfish," article, http://kb.sunfishforum.com/images/history/timeline.pdf and believe I've narrowed it down to being a 1959 or 1960 model. How can I tell for certain (so I can apply for my State's Boat Launch permit, using accurate information)?

In referencing timeline: It's Fiberglass, (with green deck, green and white sail) has the...

1959 vs. 1960 Alcort Sailfish Identifier?