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| Tartan Name | Hyland Evening (Personal) | | | | Category | Name
| | | | Designer | House of Edgar - Macnaughton Holdings Ltd. | STA Ref | 3829 | | Date Recorded | Not Specified | STWR Ref | 2750 |
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| Tartan Name | Hynde (Sir John) | | | | Category | Other | | | | Designer | Not Specified | STA Ref | 976 | | Date Recorded | Not Specified | STWR Ref | 976 |
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| Tartan Name | Hyndman | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | 2134 | | Date Recorded | Not Specified | STWR Ref | 2134 |
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| Tartan Name | Hyndman (Personal) | | | | Category | Name
| | | | Designer | Not Specified | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 2888 |
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| Tartan Name | Hyslop, D (Personal) | | | | Category | Name
| Reference | 12379 | | Designer | Hyslop, Daniel | | | | Date Recorded | 29/01/2019 | | |
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| Tartan Name | I Y | | | | Category | Corporate
| Reference | 11342 | | Designer | Lochcarron of Scotland | | | | Date Recorded | 13/08/2015 | | |
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| Tartan Name | i4travel | | | | Category | Corporate
| Reference | 13918 | | Designer | House of Edgar / Touchdown Tartans Ltd | | | | Date Recorded | 06/06/2023 | | |
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| Tartan Name | IAPD | | | | Category | Corporate
| Reference | 10395 | | Designer | Strathmore Woollen Co Ltd/McClymont | | | | Date Recorded | 05/05/2011 | | |
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| Tartan Name | Ibrox | | | | Category | District
| | | | Designer | Geoffrey (Tailor) Highland Crafts | STA Ref | 3992 | | Date Recorded | Not Specified | STWR Ref | 2724 |
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| Tartan Name | Icelandair | | | | Category | Corporate
| Reference | 11498 | | Designer | Slanj | | | | Date Recorded | 11/04/2016 | | |
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| Tartan Name | Icelandair 2025 | | | | Category | Corporate
| Reference | 14794 | | Designer | Puigcorbe Semis, Jordi | | | | Date Recorded | 22/04/2025 | | |
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| Tartan Name | Icelandic | | | | Category | District
| | | | Designer | David McGill of International Tartans | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 3189 |
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| Tartan Name | Icelandic Countryside | | | | Category | Fashion
| Reference | 11864 | | Designer | Martin, Carol A L | | | | Date Recorded | 14/07/2017 | | |
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| Tartan Name | Icelandic Horse | | | | Category | Fashion
| Reference | 12078 | | Designer | Martin, Carol A L | | | | Date Recorded | 27/02/2018 | | |
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| Tartan Name | Icelandic Lupines | | | | Category | Fashion
| Reference | 11862 | | Designer | Martin, Carol A L | | | | Date Recorded | 13/07/2017 | | |
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| Tartan Name | Idaho | | | | Category | District
| | | | Designer | Crook, Jan | STA Ref | 2116 | | Date Recorded | Not Specified | STWR Ref | 2116 |
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| Tartan Name | IEEE Glasgow | | | | Category | Corporate
| Reference | 12698 | | Designer | Kirkbright, Gordon | | | | Date Recorded | 16/12/2019 | | |
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| Tartan Name | Ikelman #2 (Personal) | | | | Category | Name
| | | | Designer | Ikelman, Douglas | STA Ref | 2211 | | Date Recorded | Not Specified | STWR Ref | 2211 |
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