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| Tartan Name | Swankie (Personal) | | | | Category | Name
| | | | Designer | House of Edgar - Macnaughton Holdings Ltd. | STA Ref | 2481 | | Date Recorded | Not Specified | STWR Ref | 2481 |
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| Tartan Name | Swanstrom (Personal) | | | | Category | Name
| | | | Designer | Swanstrom/Ferre-Middleton | STA Ref | 7222 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Swedish | | | | Category | District
| | | | Designer | David McGill of International Tartans | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 3130 |
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| Tartan Name | Swedish #2 | | | | Category | District
| | | | Designer | MacDonald, Peter | STA Ref | 5161 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Sweet Afton | | | | Category | Corporate
| Reference | 12356 | | Designer | Sweet Afton Scotch Whisky Limited | | | | Date Recorded | 15/01/2019 | | |
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| Tartan Name | Sweet, Mark (Personal) | | | | Category | Name
| Reference | 12031 | | Designer | Kinloch Anderson Ltd | | | | Date Recorded | 18/01/2018 | | |
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| Tartan Name | Sweetheart, The | | | | Category | District
| Reference | 10549 | | Designer | Kinloch Anderson Ltd | | | | Date Recorded | 30/01/2012 | | |
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| Tartan Name | Swiss Country | | | | Category | Fashion
| Reference | 11529 | | Designer | Scottish Shop Switzerland | | | | Date Recorded | 09/05/2016 | | |
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| Tartan Name | Swiss Highlander | | | | Category | Corporate
| Reference | 10123 | | Designer | Ronald Rebmann | | | | Date Recorded | 15/12/2009 | | |
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| Tartan Name | Swiss National | | | | Category | Fashion
| Reference | 10491 | | Designer | Teviotdale/McPhee | | | | Date Recorded | 26/09/2011 | | |
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| Tartan Name | Swiss Red | | | | Category | Fashion
| | | | Designer | Geoffrey (Tailor) Highland Crafts | STA Ref | 6951 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Swiss Red #2 | | | | Category | District
| | | | Designer | Geoffrey (Tailor) Highland Crafts Limited | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 3162 |
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| Tartan Name | Swords and Wine | | | | Category | Fashion
| Reference | 14566 | | Designer | Brinkmeyer, Chris | | | | Date Recorded | 03/12/2024 | | |
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| Tartan Name | Sydney (Nova Scotia) | | | | Category | Commemorative
| | | | Designer | MacMullan, Mrs R | STA Ref | 5158 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Sydney (Nova Scotia) #2 | | | | Category | District
| | | | Designer | McMullin, Mrs Rod | STA Ref | 1291 | | Date Recorded | Not Specified | STWR Ref | 1291 |
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| Tartan Name | Sydney Academy | | | | Category | Corporate
| Reference | 11245 | | Designer | Lloy, Deana | | | | Date Recorded | 04/03/2015 | | |
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| Tartan Name | Symbiosis | | | | Category | Corporate
| Reference | 11814 | | Designer | MacDonald, Peter Eslea | | | | Date Recorded | 30/05/2017 | | |
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| Tartan Name | Syme | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | 6376 | | Date Recorded | Not Specified | STWR Ref | none |
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