c. 1944–1968
1 AR
Long pointed lozenge contains 1 AR without a star or fasces. The adjacent 750 is a separate fineness punch; the oval wordmark is another company stamp.
stamped · gold · Arezzo, Italy
Designer marks
Unoaerre hallmark
Unoaerre hallmark is associated with wedding rings and gold chains from Arezzo, Tuscany, Tuscany, Italy. Unoaerre was active from 1926.
- Active years
- From 1926
- Country
- Italy
- City / region
- Arezzo, Tuscany, Tuscany
- Products
- wedding rings, gold chains, bracelets, earrings, medals, precious-metal components
- Marks
- 5
Founded 15 March 1926 as Gori & Zucchi; continuing as UNOAERRE.
What to look for
- Read the entire numbered punch. In 1 AR, the number identifies the registered manufacturer and AR identifies Arezzo. The separate 750 punch means 750 parts gold per thousand, equivalent to 18 carat gold.
- Distinguish the no-star 1 AR lozenge from the later star–1 AR punch. The star was introduced in the 1968 marking system. Check the written signature separately: UNO-A.R in an oval and UNOAERRE in a double-lobed outline are different company devices.
Marks & lettering
5 marks
c. From 1968
★ 1 AR
A five-pointed star precedes 1 AR in the clasp link’s lower pointed cartouche. The oval brand signature and 750 purity punch are separate from the registration cartouche.
stamped · gold · Arezzo, Italy
Undated
UNOAERRE
Full name in a double-lobed outline, with inward notches at the top and bottom centre. Distinct from the simple UNO-A.R oval and the existing angular UNO A-ERRE cartouche.
stamped · gold · Arezzo, Italy
Undated
UNO-A.R
Shortened UNO-A.R wording occupies the bottom oval in the photograph, below the numbered lozenge. This is separate from the 1 AR registration stamp.
stamped · gold · Arezzo, Italy
About Unoaerre
Carlo Zucchi and Leopoldo Gori founded Gori & Zucchi in Arezzo on 15 March 1926. Their business combined goldsmithing with industrial production methods. In 1934 the firm received the identification number 1 AR, the first registered goldworking number in the province of Arezzo. Read aloud in Italian, the number and letters became the name Unoaerre. The numbered factory punch and the written company signature are separate marks and can appear together on a piece.
The factory was destroyed during the Second World War and production resumed in new premises after the war. The firm opened its Via Vittorio Veneto factory in 1948 and registered its historic oval UNO-A.R wordmark in 1957. Its products included wedding rings, gold chains, bracelets, earrings and medals. The company adopted techniques such as investment casting and worked with artists and designers while expanding its international distribution.
Ownership passed to the Morgan Grenfell fund in 1999 and subsequently returned to the founding Zucchi family. Sergio Squarcialupi acquired the business at auction in 2012. UNOAERRE continued manufacturing in Arezzo, making gold and silver jewelry, precious-metal medals, ingots and components for other jewelry businesses.
Also known as: Gori & Zucchi · Uno A Erre · UNO-A.R · UNO-A-ERRE · 1 AR · UNOAERRE Industries S.p.A.
Look-alikes & how to tell them apart
Other numbered AR maker marks
AR alone identifies the province of Arezzo. Compare the full registration number: UNOAERRE is 1 AR, while a different number followed by AR belongs to another registrant. A 750 fineness stamp by itself does not identify this manufacturer.