Vol. 4 of the 2017 edition of the Scott Standard Postage Stamp Catalogue contains more than 13,600 value changes.
A full line-by-line review of Malta results in 1,577 value changes. The changes in the classic period reflect increases for high-quality classic issues up to 1935. Stamps of the first issue of 1860-61 (Scott 1-2) show gains. A review of modern issues of the Democratic People’s Republic of Korea (North Korea) from mid-2003 through 2012 results in almost 1,200 value changes. Here we see a stronger market that saw values increase from 10 percent to 20 percent. The 2006 Motorcycles horizontal strip of four stamps (Scott 4628) rose from $7 unused to $8.25 and from $3.50 used to $4.25. Three of the four Federated States of Malaya, Negri Sembilan, Pahang, and Perak, received a thorough vetting, resulting in 430 value changes, most of which reflect increases. Some of the increases are significant. Among the Negri Sembilan issues, the 1-cent lilac and green stamp (Scott 5) of the 1895-99 set jumps from $18 unused to $25 and from $8.50 used to $11.50. In Pahang, the 1889 2c rose (Scott 5) soars from $9,000 unused to $12,750 and from $2,500 used to $3,250. Similar increases are found Perak.
Editorial enhancements include a new 25 by 16 holes variety for a 1905 Kiauchau definitive, the $1½ black violet, enters the catalog as Scott 31a. Footnotes acknowledging the existence of imperforate varieties for a few 2007-08 sets of Kosovo have been installed. In Kuwait, two new color-omitted errors have been added to the 1964 Sheik Abdullah set as Nos. 230b and 232b. Both are missing the silver country name and denomination inscriptions, and are valued at $1,250. They are believed to be the only documented color-omitted errors for Kuwait.
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