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| Tartan Name | Mozambique | | | | Category | Fashion
| | | | Designer | McGill, David/International Tartans Ltd | STA Ref | 2821 | | Date Recorded | Not Specified | STWR Ref | 3245 |
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| Tartan Name | MS Society Scotland | | | | Category | Corporate
| Reference | 12122 | | Designer | Dalgetty, Moira | | | | Date Recorded | 24/04/2018 | | |
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| Tartan Name | MTV | | | | Category | Corporate
| Reference | 11153 | | Designer | Ainsworth, Trudie | | | | Date Recorded | 30/10/2014 | | |
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| Tartan Name | Muffins, W & M (Personal) | | | | Category | Name
| Reference | 13857 | | Designer | McGreechin, Erin and Morris-Stiff, Eleri | | | | Date Recorded | 28/03/2023 | | |
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| Tartan Name | Muir Homes | | | | Category | Corporate
| | | | Designer | Kinloch Anderson Ltd | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 3283 |
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| Tartan Name | Muir/Moore | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | 345 | | Date Recorded | Not Specified | STWR Ref | 345 |
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| Tartan Name | Muirhead | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | 3099 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Muirhead (Original) | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | 6001 | | Date Recorded | Not Specified | STWR Ref | 1862 |
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| Tartan Name | Mulcahy | | | | Category | Clan/Family | | | | Designer | Mulcahy, Paul | STA Ref | 7264 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Mule | | | | Category | Corporate
| Reference | 12542 | | Designer | Eich, Matt | | | | Date Recorded | 02/07/2019 | | |
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| Tartan Name | Mulholland (Personal) | | | | Category | Clan/Family | | | | Designer | Dalgliesh, D C | STA Ref | 5649 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Mulhouse | | | | Category | District
| Reference | 15117 | | Designer | Goubet, Mathilde & Billot, Jonathan | | | | Date Recorded | 29/11/2025 | | |
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| Tartan Name | Mull | | | | Category | District
| | | | Designer | Wilsons of Bannockburn | STA Ref | 162 | | Date Recorded | Not Specified | STWR Ref | 162 |
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| Tartan Name | Mull & Iona Archers | | | | Category | Corporate
| Reference | 14720 | | Designer | Smith, Sarah; Sarah's Weaving Shed | | | | Date Recorded | 18/03/2025 | | |
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