Assay Office
S&
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Silver & Kaye (1967) 1957 – 2006 | 2020 | 9ct yellow gold padlock with gate bracelet |
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Slade & Wolf (1947 – 1976) | 9ct yellow gold wedding ring | Wedding ring maker | |
 | Slade & Wolf (1955) 1947 – 1976 | 2019 | 18ct white and yellow gold pierced wedding ring | Wedding ring maker |
SJ
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Soude Jewellery 1968 – 2006 | (1991) 2019 | 9ct yellow gold dress ring |
SF
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Stephen Foster Jewellery 1991 | 2018 | 18ct yellow gold diamond set ring |
SS
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | S S Jewellery Manufacturing Company | 2019 |
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Sanitt & Stein 1957 – 1967 | (1957) 2019 |
ST
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Stephen Tyler 1998 | 2018 | 18ct gold diamond set ring | |
 | Stephen Tyler 1985 to date | 2018 | Platinum diamond set ring |
SW
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | SW (A private Individual) 2002 | 2019 | 18ct bespoke diamond set ring | With Institute of Professional Goldsmiths mark |