SETTINGS 26/27: 1901-28 imperf. and pin-perf. 1a. blue (many shades) with frame recut, the fine study (354) replete with the gamut of impressions (clear to very worn), shades and a wealth of multiples including complete sheets (3, one unused, two telegraphically cancelled) also inverted clichés (where identifiable) and a rare block of four on European paper showing the substituted cliché [24], the blue-green error (1917) is represented by a block of four, the lower left stamp cliché inverted [15], telegraphically cancelled. A fascinating lot.