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| Tartan Name | Lamquet (2015) | | | | Category | Name
| Reference | 11217 | | Designer | Lamquet, Michael | | | | Date Recorded | 11/02/2015 | | |
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| Tartan Name | Lanark (Fashion #1) | | | | Category | Fashion
| | | | Designer | Tam-o-Shanter Inn | STA Ref | 3062 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Landels (Personal) | | | | Category | Name
| | | | Designer | Fraser, Donald | STA Ref | 7370 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Lander (2013) | | | | Category | Name
| Reference | 10951 | | Designer | Lander, C P | | | | Date Recorded | 03/12/2013 | | |
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| Tartan Name | Langerman (Anchorage) | | | | Category | Name
| Reference | 10191 | | Designer | Eric Langerman | | | | Date Recorded | 19/04/2010 | | |
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| Tartan Name | Langston (Personal) | | | | Category | Clan/Family | | | | Designer | Urquhart, Blair | STA Ref | 4214 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Lapierre-Sabourin (Personal) | | | | Category | Name
| Reference | 12100 | | Designer | Lapierre, Marc-André & Sabourin, Chantal | | | | Date Recorded | 04/04/2018 | | |
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| Tartan Name | Laprise, J (Personal) | | | | Category | Name
| Reference | 14638 | | Designer | Hammell, Cliff | | | | Date Recorded | 04/02/2025 | | |
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| Tartan Name | Lareymondie (2017) | | | | Category | Name
| Reference | 11800 | | Designer | Lareymondie, François de Lacoste | | | | Date Recorded | 22/05/2017 | | |
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| Tartan Name | Large (Personal) | | | | Category | Name
| Reference | 10016 | | Designer | Large / Urquhart | | | | Date Recorded | 09/04/2009 | | |
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| Tartan Name | Largs Dress (1972) | | | | Category | Fashion
| | | | Designer | Highland Queen | STA Ref | 5392 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Largs Dress (1983) | | | | Category | District
| | | | Designer | Not Specified | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 1838 |
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| Tartan Name | Lauder (Family) | | | | Category | Clan/Family | | | | Designer | Sobieski Stewarts, The | STA Ref | 709 | | Date Recorded | Not Specified | STWR Ref | 709 |
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