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| Tartan Name | Los Angeles | | | | Category | District
| | | | Designer | Not Specified | STA Ref | 6071 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Loseby, Luke (Personal) | | | | Category | Name
| Reference | 11192 | | Designer | MacDonald, Peter Eslea | | | | Date Recorded | 15/12/2014 | | |
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| Tartan Name | Lossiemouth/Hersbruck | | | | Category | Commemorative
| | | | Designer | Johnstons of Elgin | STA Ref | 2311 | | Date Recorded | Not Specified | STWR Ref | 2311 |
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| Tartan Name | Lothian Buses | | | | Category | Corporate
| | | | Designer | Not Specified | STA Ref | 7779 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Loton (Personal) | | | | Category | Clan/Family | | | | Designer | Dalgliesh, D C | STA Ref | 5498 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Lotus Ltd | | | | Category | Corporate
| Reference | 14920 | | Designer | ScotlandShop | | | | Date Recorded | 15/07/2025 | | |
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| Tartan Name | Loudoun's Highlanders | | | | Category | Military
| | | | Designer | Not Specified | STA Ref | 5492 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Loughborough Sport | | | | Category | Corporate
| Reference | 11089 | | Designer | Farkas, D | | | | Date Recorded | 24/07/2014 | | |
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| Tartan Name | Lougheed | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | 5932 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Louisburg | | | | Category | District
| | | | Designer | McIntyre & Kyte | STA Ref | 5500 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Louise of Lorne | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 298 |
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| Tartan Name | Louise of Lorne #2 | | | | Category | Commemorative
| | | | Designer | Not Specified | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 765 |
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| Tartan Name | Louisiana | | | | Category | District
| | | | Designer | Campbell, Joe McD. | STA Ref | 4126 | | Date Recorded | Not Specified | STWR Ref | 1945 |
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| Tartan Name | Louisiana Tech | | | | Category | Corporate
| Reference | 14973 | | Designer | Heiden, Kathleen | | | | Date Recorded | 26/08/2025 | | |
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