Watch List notes:

(g) Spain, Alfonso XIII (1886-1931), 20-Pesetas, 1890 mp-m (18-90 in stars), Madrid, baby head right, rev. crowned shield within Collar of the Order of the Golden Fleece (F.345; KM 693), extremely fine.
provenance
Purchased Seaby, 9 November 1955 - £5.15.0
Estimate: £150 - £200