Watch List notes:

(Tsarist) Russia, Nicholas I (1825-1855), Platinum Specimen Proof 3-Roubles, 1828, St Petersburg, crowned Imperial eagle, rev. denomination and date within toothed border, edge milled, 12h (Bitkin 73; Fb. 60; Craig 177), evidence of having been plugged at 6 o'clock, hairlined across the fields, otherwise brilliant to bright surfaces, extremely fine, rare and first year of issue for type, in PCGS holder, graded UNC Details- Plugged (Cert. #929996.98/48009292).

Estimate: £2500 - £3000