Indeed. It's nothing special, a 1/4 wavelength tuned for ham 2m is pretty close to exactly a 3/4 wavelength for the 70cm band. I suspect the coil is to tweak one or the other for the *slight* difference. There's nothing in the base of it to indicate it's 1/2 or 5/8 wavelength, since that would require a matching network.That makes a lot more sense.
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