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| Tartan Name | Megan's Space | | | | Category | Corporate
| Reference | 13834 | | Designer | McGreechin, Erin and Teviotdale, Gemma | | | | Date Recorded | 07/03/2023 | | |
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| Tartan Name | Meh Dundee | | | | Category | Fashion
| Reference | 11404 | | Designer | McIntosh, Georgina | | | | Date Recorded | 09/11/2015 | | |
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| Tartan Name | Mehrtens (Personal) | | | | Category | Name
| | | | Designer | Newsome, Matthew A.C. | STA Ref | 6878 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Meiji Rugby 1923 | | | | Category | Corporate
| Reference | 10037 | | Designer | Lochcarron of Scotland | | | | Date Recorded | 26/05/2009 | | |
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| Tartan Name | Meiklejohn (Personal) | | | | Category | Name
| | | | Designer | Geoffrey (Tailor) Highland Crafts Limited | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 3175 |
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| Tartan Name | Meirhaeghe, Van | | | | Category | Name
| Reference | 11014 | | Designer | Meirhaeghe/ Van Meirhaeghe | | | | Date Recorded | 20/03/2014 | | |
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| Tartan Name | Mekos, The | | | | Category | Corporate
| Reference | 11072 | | Designer | Wood, Charlotte | | | | Date Recorded | 12/06/2014 | | |
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| Tartan Name | Melange | | | | Category | Fashion
| | | | Designer | Highland Queen | STA Ref | 3466 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Melieres-Frost | | | | Category | Name
| Reference | 10069 | | Designer | Michel-'Smoky' Melieres | | | | Date Recorded | 26/08/2009 | | |
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| Tartan Name | Mells Foxhounds | | | | Category | Corporate
| Reference | 14826 | | Designer | Kramedjian, Ronald E | | | | Date Recorded | 20/05/2025 | | |
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| Tartan Name | Melrose | | | | Category | District
| | | | Designer | Lochcarron of Scotland | STA Ref | 3926 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Melrose of Alabama | | | | Category | Corporate
| | | | Designer | House of Edgar - Macnaughton Holdings Ltd. | STA Ref | 4151 | | Date Recorded | Not Specified | STWR Ref | none |
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