Watch List notes:

Popayan, Colombia, 1/2 decimo, 1875, without "AB," fineness 0.666, NGC VF 30, ex-Dana Roberts (stated on label). Restrepo-258.9; KM-150.3. Nice rainbow toning over muted luster, somewhat crude (off-center strike, grease-filled letter in die, etc.) but not overly worn (in fact more like XF in our estimation). NGC #4687761-003. Pedigreed to the Dana Roberts collection.

Estimate: $150-225