The San Francisco and Denver Mint issues from 1937 have very similar mintages that are within a few hundred thousand of each other; and, thus comparable rarity. It is second to the 1939-S as the most common 1930’s San Francisco Mint issue and readily available in Mint State grades through MS66. Only MS67’s are in any way scarce. It is known to have notable luster as well as a strong strike unusual for Walkers out of San Francisco.