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| Tartan Name | Southwell (Personal) | | | | Category | Name
| | | | Designer | Johnston, Betty | STA Ref | 6744 | | Date Recorded | Not Specified | STWR Ref | 2780 |
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| Tartan Name | Southwick | | | | Category | Clan/Family | | | | Designer | Southwick, Tim | STA Ref | 2642 | | Date Recorded | Not Specified | STWR Ref | 2642 |
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| Tartan Name | Souza Nery (Personal) | | | | Category | Name
| | | | Designer | Scottish Tartans Society | STA Ref | 2651 | | Date Recorded | Not Specified | STWR Ref | 2651 |
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| Tartan Name | SPA Association | | | | Category | Corporate
| | | | Designer | Hall, Fiona | STA Ref | 6461 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Spanish shirt | | | | Category | Fashion
| | | | Designer | Not Specified | STA Ref | 4399 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Spar (UK) Ltd | | | | Category | Corporate
| | | | Designer | Lumsden, Keith | STA Ref | 2353 | | Date Recorded | Not Specified | STWR Ref | 2353 |
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| Tartan Name | Spark of ADHD | | | | Category | Fashion
| Reference | 15316 | | Designer | Hoffmeier, Beth and Bashford, Amel | | | | Date Recorded | 10/03/2026 | | |
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| Tartan Name | Special 1 | | | | Category | Fashion
| | | | Designer | Lochcarron of Scotland | STA Ref | 4091 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Special Air Service | | | | Category | Military
| Reference | 10886 | | Designer | Not specified | | | | Date Recorded | 21/08/2013 | | |
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| Tartan Name | Special Saffron | | | | Category | District
| | | | Designer | Not Specified | STA Ref | 201 | | Date Recorded | Not Specified | STWR Ref | 201 |
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| Tartan Name | Spectra | | | | Category | Corporate
| Reference | 11997 | | Designer | Gordon Nicolson Kiltmakers | | | | Date Recorded | 28/11/2017 | | |
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| Tartan Name | Spencer | | | | Category | Fashion
| | | | Designer | West Coast Woolen Mill | STA Ref | 5315 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Spencer (2013) | | | | Category | Name
| Reference | 10901 | | Designer | Spencer, Peter | | | | Date Recorded | 18/09/2013 | | |
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| Tartan Name | Spens/Spence | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | 1671 | | Date Recorded | Not Specified | STWR Ref | 1671 |
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| Tartan Name | Spessartfolk | | | | Category | Corporate
| Reference | 13477 | | Designer | Heßler, Johannes | | | | Date Recorded | 12/04/2022 | | |
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| Tartan Name | Spey | | | | Category | Corporate
| Reference | 11653 | | Designer | Whitson, Fiona | | | | Date Recorded | 09/11/2016 | | |
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