1873, page from the Royal Swedish General Post Office collection with stamps mounted on both sides, stamps handstamped and overprinted “SPECIMEN” include 1889 King William III 15c.-1g., 1886 postage due 30c. and 50c., also some of the issued values, all fresh colours, scarce (SG of specimen stamps ca. £950,-) (Mi.-Nr. 17-21Sp, P5IISp, P8IIISp, etc.)
