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| Tartan Name | Arbuthnott | | | | Category | Clan/Family | | | | Designer | Unknown | STA Ref | 204 | | Date Recorded | Not Specified | STWR Ref | 204 |
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| Tartan Name | Arbutus | | | | Category | Fashion
| | | | Designer | West Coast Woolen Mill | STA Ref | 3035 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Arctic | | | | Category | District
| | | | Designer | Jones, Rosalind | STA Ref | 3040 | | Date Recorded | Not Specified | STWR Ref | 2896 |
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| Tartan Name | Arctic Fox | | | | Category | Fashion
| Reference | 11890 | | Designer | Martin, Carol A L | | | | Date Recorded | 08/08/2017 | | |
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| Tartan Name | Arctic Tundra | | | | Category | Fashion
| Reference | 11908 | | Designer | Martin, Carol A L | | | | Date Recorded | 06/09/2017 | | |
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| Tartan Name | Ardmore | | | | Category | Fashion
| | | | Designer | West Coast Woolen Mill | STA Ref | 3041 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Arduaine Red | | | | Category | Fashion
| | | | Designer | Anderson, Kirsty | STA Ref | 7572 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Argentina | | | | Category | Corporate
| | | | Designer | St Andrew's Society of the River Plate | STA Ref | 2487 | | Date Recorded | Not Specified | STWR Ref | 2487 |
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| Tartan Name | Argentine Flag | | | | Category | Fashion
| Reference | 10007 | | Designer | Vaughan, William Mortensen | | | | Date Recorded | 04/03/2009 | | |
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| Tartan Name | Argyle Dress | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | 3602 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Argyll | | | | Category | District
| | | | Designer | Not Specified | STA Ref | 2079 | | Date Recorded | Not Specified | STWR Ref | 2079 |
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| Tartan Name | Arisaig NS Canada | | | | Category | District
| Reference | 10170 | | Designer | Macquarrie, Ann Smith | | | | Date Recorded | 15/03/2010 | | |
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| Tartan Name | Arizona | | | | Category | District
| | | | Designer | Smith Jnr, Dr Philip D | STA Ref | 5706 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Arizona Jones | | | | Category | Name
| Reference | 10225 | | Designer | Jones, Torrey | | | | Date Recorded | 11/06/2010 | | |
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| Tartan Name | Arkansas | | | | Category | District
| | | | Designer | Smith Jnr, Dr Philip D | STA Ref | 2678 | | Date Recorded | Not Specified | STWR Ref | 2678 |
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| Tartan Name | Arkansas (Unofficial) | | | | Category | District
| | | | Designer | Nickering, Jason | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 2737 |
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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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