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| Tartan Name | Armagh County, Crest Range | | | | Category | District
| | | | Designer | Viking Technology Ltd | STA Ref | 7447 | | Date Recorded | Not Specified | STWR Ref | 3075 |
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| Tartan Name | Armagh, County | | | | Category | District
| | | | Designer | House of Edgar - Macnaughton Holdings Ltd. | STA Ref | 2276 | | Date Recorded | Not Specified | STWR Ref | 2276 |
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| Tartan Name | Armstrong | | | | Category | Clan/Family | | | | Designer | Sobieski Stewarts, The | STA Ref | 793 | | Date Recorded | Not Specified | STWR Ref | 793 |
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| Tartan Name | Army & Navy Academy | | | | Category | Corporate
| Reference | 14706 | | Designer | Paterson, Robert | | | | Date Recorded | 11/03/2025 | | |
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| Tartan Name | Army Air Corps | | | | Category | Military
| Reference | 12701 | | Designer | Lawson, Margi | | | | Date Recorded | 14/01/2020 | | |
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| Tartan Name | Army Medical Services | | | | Category | Military
| Reference | 11394 | | Designer | MacDonald, Peter Eslea | | | | Date Recorded | 29/10/2015 | | |
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| Tartan Name | Army Ranger | | | | Category | Fashion
| Reference | 11422 | | Designer | Martin, John W | | | | Date Recorded | 10/12/2015 | | |
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| Tartan Name | Arndt (Personal) | | | | Category | Name
| | | | Designer | Not Specified | STA Ref | 7271 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Arnold (California) | | | | Category | Name
| Reference | 10751 | | Designer | Arnold, Raymond J | | | | Date Recorded | 27/12/2012 | | |
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| Tartan Name | Arnot (2017) | | | | Category | Name
| Reference | 11943 | | Designer | Arnot, William | | | | Date Recorded | 18/10/2017 | | |
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| Tartan Name | Arran (1880) | | | | Category | Other | | | | Designer | Unknown | STA Ref | 3961 | | Date Recorded | Not Specified | STWR Ref | 107 |
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| Tartan Name | Arran (Pendleton) | | | | Category | District
| | | | Designer | Pendleton Woolen Mills | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 261 |
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| Tartan Name | Arran (Strathmore) | | | | Category | Fashion
| | | | Designer | Strathmore Woollen Company Ltd | STA Ref | 3018 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Arran Mist | | | | Category | Fashion
| Reference | 11544 | | Designer | Dewar, Ailis | | | | Date Recorded | 25/05/2016 | | |
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| Tartan Name | Arran, Isle of (Strathmore) | | | | Category | District
| | | | Designer | Strathmore Woollen Company Ltd | STA Ref | 381 | | Date Recorded | Not Specified | STWR Ref | 381 |
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| Tartan Name | Arrol | | | | Category | Corporate
| | | | Designer | Not Specified | STA Ref | 1365 | | Date Recorded | Not Specified | STWR Ref | 1365 |
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| Tartan Name | Art Pewter Silver | | | | Category | Corporate
| | | | Designer | MacDonald, Peter | STA Ref | 3021 | | Date Recorded | Not Specified | STWR Ref | none |
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