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| Tartan Name | Letham Hunting | | | | Category | Name
| Reference | 10025 | | Designer | Robert Letham | | | | Date Recorded | 15/05/2009 | | |
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| Tartan Name | Lethbridge, City of | | | | Category | District
| | | | Designer | Lethbridge Handicraft Guild. | STA Ref | 2672 | | Date Recorded | Not Specified | STWR Ref | 2672 |
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| Tartan Name | Letter Dress (2014) | | | | Category | Name
| Reference | 11178 | | Designer | Letter, M F | | | | Date Recorded | 27/11/2014 | | |
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| Tartan Name | Leung (Personal) | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 2984 |
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| Tartan Name | Lewis Green | | | | Category | Fashion
| | | | Designer | Not Specified | STA Ref | 7600 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Lewis Magenta | | | | Category | Fashion
| | | | Designer | Not Specified | STA Ref | 7579 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Lewis Navy | | | | Category | Fashion
| | | | Designer | Not Specified | STA Ref | 7590 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Lewis of Wales | | | | Category | Name
| | | | Designer | Daniel, Sheila | STA Ref | 5758 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Lewis Red | | | | Category | Fashion
| | | | Designer | Not Specified | STA Ref | 7570 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Lexington Fire Department | | | | Category | Corporate
| | | | Designer | Polenzani, Maria | STA Ref | 5830 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Liama, The | | | | Category | Fashion
| | | | Designer | Aljean of Vancouver | STA Ref | 5420 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Liberton | | | | Category | Clan/Family | | | | Designer | Liberton, Patrick | STA Ref | 6993 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Liberty Square | | | | Category | Fashion
| Reference | 10621 | | Designer | Liberation Kilt Co | | | | Date Recorded | 18/05/2012 | | |
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| Tartan Name | Liberty University Inc. | | | | Category | Corporate
| Reference | 14352 | | Designer | Paterson, Robert | | | | Date Recorded | 10/07/2024 | | |
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| Tartan Name | Lichen and Stone | | | | Category | Fashion
| Reference | 14024 | | Designer | Bohn, Caryl J | | | | Date Recorded | 29/08/2023 | | |
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