* Pair A: Newer (1960s) black Cavalero-Champion Super Hydro swimming fins with closed heels and open toes.
<ul><li>Pair B: Older (1950s?) black Cavalero-Champion Hydromatic swimming fins with closed heels and toes.</li>
<li>Pair C: Newer (1960s) yellow Cavalero-Champion Hydromatic swimming fins with closed heels and toes.</li></ul>
<a href="//commons.wikimedia.org/wiki/User:Helmardine" title="User:Helmardine">Helmardine</a>
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<span class="int-own-work" lang="en">Own work</span>