Italian philately begins in 1851, when the first stamps of the pre-unification states appeared. The Kingdom of Italy, unified in 1861, produced its first stamps in that same year and continued issuing until the Republic replaced the monarchy in 1946. Across those 85 years, a few dozen issues stand out as genuinely scarce, with prices ranging from several hundred to tens of thousands of euros. Knowing which ones they are and how to identify them is the foundation of informed collecting in this period.
Which are the rarest stamps of the Kingdom era?
The very first Italian unified stamps — the 1863 series featuring the portrait of Vittorio Emanuele II, printed by De La Rue in London — are the most historically significant of the early Kingdom period. Several values in this series are scarce in used condition with clear, legible cancellations, and extremely rare in mint (never hinged) condition.
Among the specific rarities most sought by collectors:
- 1863-65 De La Rue series — The 15c blue, 20c orange, and 80c yellow are the most actively collected values. In mint never-hinged condition, the 80c yellow can exceed 5,000 euros. Used examples with clean cancellations in VF centering reach 500 to 1,500 euros.
- 1890 Pacchi Postali surcharges — Parcel post stamps with hand-applied surcharges. Inverted surcharges and double prints are known and command significant premiums when genuine. Fakes are common; expert certificates are essential.
- 1944-1945 Luogotenenza period — The transition stamps overprinted for the provisional government. Inverted overprints on the 25c and 30c values are genuine rarities. Most examples offered in the market are forgeries; again, a certificate from a recognised expertising body is mandatory before paying a premium.
- Fascist-era color varieties — Several definitive series of the 1920s and 1930s have known color errors and imperforate varieties. The Sassone catalogue documents these with rarity classifications.
How to use the Sassone catalogue
The Catalogo Sassone is the definitive Italian philatelic reference, equivalent in authority to the Scott catalogue for American stamps or Stanley Gibbons for British. It lists every Italian stamp with a unique number, current catalogue value in euros (for both mint and used conditions), and rarity classification. Before buying or selling any Italian stamp at significant value, the Sassone number should be the starting point.
Sassone values are retail guide prices, not guaranteed realisations. For common stamps, actual sales may be well below catalogue. For rare items with specialist demand, realised prices at auction sometimes exceed catalogue value significantly.
What to check on any Kingdom-era stamp
- Centering — Equal margins on all four sides indicate a well-centered stamp, which commands a significant premium over off-center examples in the same condition
- Gum — Original gum never hinged (OG NH or Senza Linguella) is the maximum premium condition for mint stamps. Hinged examples are worth considerably less
- Perforation — Italian Kingdom stamps were perforated on gauge 14. Check for short, missing, or repaired perfs, which reduce value
- Cancel quality — For used stamps, a light, dated circular datestamp that does not obscure the design is ideal. Heavy cancels, manuscript cancels, and pen cancels reduce value
- Expertisation — For any stamp valued above 100 euros, a certificate from a recognised expertising body such as the Unione Filatelisti Italiani (UFI) or Raybaudi is strongly recommended before purchase
Where to find Kingdom-era stamps today
The most reliable sources are specialist philatelic auction houses — both Italian houses such as Sorani and international houses with Italian departments such as Heinrich Kohler. Inherited collections remain a source of unexpected finds. Online platforms are accessible but require caution: the proportion of poorly described or misdescribed material is higher than in specialist auction catalogues, and certificates are often missing for exactly the stamps where they are most needed.