I found these two reels on ebay, a 330 and 331N. I'm not really interested in buying, at least this size.
Got two questions:
Were there also a 221N, 441N, and a 551N?
Also do these high speed N series have the capability to switch the handles to the other side?
Yes, these pictured can be switched to either side crank.
In the "N" series, there are 7 — 110N, 220N, 330N, 331N, 440N, 441N, & 550N.
Best,
Fred