Caroline Islands 10pf & 20pf, 48? overprints, gutter pairs. O.g., never hinged, 10pf with weak perfs, otherwise post office fresh and Very Fine. Michel No. 3 I ZS, 4 I ZS €1,400 ($1,918). Scott No. 3a, 4a. $0 (Image)

Caroline Islands 1899, 50pf red brown, 48 degree overprint. Yap cds, 6 Nov 1899, Very Fine; with 2004 Brekenfeld certificate. Michel No. 6 I €1,800 ($2,466). Scott No. 6a  $1,600. $0 (Image)

Caroline Islands 1899, 50pf red brown, 48? overprint. O.g., fresh and Very Fine; signed Thier with 2005 APEX certificate. Michel No. 6 I €800 ($1,096). Scott No. 6a  $900. $0 (Image)

Caroline Islands 1899, 5pf green, 48? overprint. Yap cds, 7 Feb 1901, Fine; signed Bothe BPP, Dr. Bohne GPSY. Michel No. 2 I €750 ($1,028). Scott No. 2a  $575. $0 (Image)

Caroline Islands 1901, 5m slate & carmine. Neat Poape cds's, 26 Feb 1907, F.-V.F.; signed Bothe with his 1970 certificate. Michel No. 19 €600 ($822). Scott No. 19  $550. $0 (Image)