Watch List notes:

George V (1910-1936), Proof Halfcrown, 1911, by Mackennal and Pistrucci, bare head left, rev. crowned shield in Garter, 14.12g, 1h (ESC 3710 [758]; Spink 4011), obverse with iron gray tone overlying brilliant fields, the reverse with electric blue tone to peripheries, choice mint state, , This lot is also offered as a group lot in lot 284. Whichever reaches higher hammer price will sell and the other option will be withdrawn..
Provenance
The Gemini Collection
, ,
NGC PF62 (Certification #5879473-005)
, https://www.ngccoin.com/certlookup/5879473-005/62/
Estimate: £150 - £200