Scarce Type 2 S Mint...known for typically weak strike..PCGCS pricing $450 (pcgs.com), NGC $430, Coin World $425, 2017 Mega Red has it at $500.
1979 pricing in VF20=$150 (The Buffalo Nickel by Cohen and Druley @1979)...has held its own over time, as high as $550 prior to the market slump in coin prices...excellent value at this level
Dave Bowers - official Red Book Guide...1913S T2 was considered the key issue...there are scarcer in Mint State but Bowers has expressed an opinion that foundational rarity (rarity across all the grades) is more comfortable position than conditional rarity)
From NGC date analysis: ngccoin.com Population Graded by NGC in VF20 164 (PCGS 57) 1298 Better (PCGS 2558 higher) Strike is a problem with only a small percentage full details...
This is among the rarest of the date/mint combinations in the Indian Head/Buffalo series. It has the third smallest mintage, only slightly higher than that of the 1931 S nickel, but that's where the comparison ends. The latter date was not released immediately, its low mintage was known beforehand, and vast numbers were preserved in Mint State. In contrast, the 1913 S Type 2 nickel was released quickly and at a time when very few persons were collecting current issues by date and mint. Hoarding activity was centered around the Type 1 nickels, and this second emission was largely overlooked. Finally, the shallow dates of 1913 nickels meant that any coins entering circulation would be dateless within 15-20 years.
The certified population of 1913 S Type 2 nickels gives a false impression of actual availability, as the value of these coins prompts a far greater rate of submission for grading. Gems are truly rare, and this coin is often found quite weakly struck, though the problem is certainly not as great as it is for the 1913 S Type 1 nickel.