Sail #
The HIN on my '86 O'day 192 is SURJ0313G586. The number on the mainsail is 313. So my guess is that your sail number should be 356. Regarding the 222 vs. the 22 - In the mid '80s O'day (at that time owned by Lear-Siegler) introduced several new models, that replaced boats of the same length in the model lineup, and a "2" was added to differentiate them. There's a 192, 222, 272, 302 & 322 that I know of in that series. I'd say there's sort of a family resemblence among them in the shape of the cabin windows and the rake of the bow and transom.