Watch List notes:

Transylvania, Maria Theresa (1740-80), gold ¼-Ducat, 1749, Karlsburg, young head right, rev. crowned double-headed eagle (Friedberg 547; KM 618), lustrous, good extremely fine, in NGC holder, graded MS63.
provenance
Heritage, World Coin Auction 3049, 8 September 2016, lot 34426
Estimate: £700 - £900