Somewhat off-topic - but at least tangentially related: Just last week I purchased a Comet CA-2X4SR, which is marketed as a dual band 2m/70cm antenna. When I swept it, I discovered it is also resonant on 220, and has less than 1.4:1 across the entire band. Too bad I don't have any radios to take advantage of this!
Sweeps are attached.
Tony W2ASC
