In the 1970s-'80s, Phelps Dodge (and/or maybe) Antenna Specialists
manufactured
a 5/8-wave high-band VHF whip that differed from the usual design.

Rather than incorporating the typical base-loaded match in a
waterproof housing, the radiator itself was formed into a coil of
about two turns with an approximate 2.5 inch diameter.

Thus, the match also served as a spring.

I am looking for one of these, new or used.

K1JJJ.ae@ verizon.net