1870 Proof

The 1870 Liberty Head Double Eagle Proof is a marquee Type 2 With Motto rarity, struck at Philadelphia from a single die pairing cataloged today as JD-1 under John Dannreuther's reference numbering. Mint records account for a delivery of 35 proof pieces, modestly larger than the 25-coin runs of 1868 and 1869 and a figure that briefly returned the proof program to the cadence last seen with the 50-piece 1867. Coins were prepared individually from polished dies for delivery to year-set subscribers and a small group of cabinet collectors. The date is also notable in series history because Carson City began coining double eagles in 1870, producing the storied 1870-CC business strike; the Philadelphia proof is structurally separate from that branch-mint issue, but the year sits at a pivotal moment in the broader Liberty Head story. Sheldon rarity is generally cited as Low R.7 by Dannreuther.

Surviving examples are estimated at roughly 9 to 12 across all grades, with Dannreuther recording 9 to 11 and PCGS CoinFacts placing the figure at 8 to 12; once museum holdings and duplicate certifications are reconciled, only five or six pieces are realistically available to private collectors. Cameo contrast is the principal quality driver, and the finest survivors display heavy device frost over deeply reflective fields that supports Cameo, Deep Cameo, and in the rarest instances Ultra Cameo designations from PCGS and NGC. Authentication remains essential, since deeply prooflike circulation strikes from 1870 occasionally surface with reflective surfaces; genuine proofs show squared rims, fully formed dentils, and uniform die polish across both faces. Hairlines and light handling on Liberty's cheek and the eagle's neck feathers most often constrain numerical grades, with the typical certified survivor falling in the PR62 to PR64 band.

Market position for the 1870 reflects both absolute scarcity and the date's anchor role within the early Type 2 proof cluster. The headline reference is the PR65 Ultra Cameo NGC, CAC example that realized $345,000 at Heritage's April 2018 CSNS Signature sale, where it served as the top lot and was described as one of only four or five specimens confirmed in collector hands at that grade. Public offerings remain few and far between, with multi-year gaps between major appearances and most movement occurring through specialist channels at Heritage and Stack's Bowers. The 1870 sits comfortably within the densely scarce early Type 2 proof run, slightly more available than the 1868 and 1869 deliveries owing to its higher mintage, yet still functioning as a genuine stopper for any collector assembling a complete proof cabinet. For broader context, see our Liberty Head Double Eagle series history.