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| Tartan Name | Anthony Plaid, Ecru | | | | Category | Fashion
| | | | Designer | Artmark | STA Ref | 3520 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Anthony Plaid, Red | | | | Category | Fashion
| | | | Designer | Artmark | STA Ref | 3521 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Anthony Plaid, Stewart | | | | Category | Fashion
| | | | Designer | Artmark | STA Ref | 3522 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Antigonish Centennial | | | | Category | District
| | | | Designer | MacMullin, Patricia | STA Ref | 3523 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Antigua & Barbuda | | | | Category | District
| | | | Designer | Doram, Heather | STA Ref | 7185 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Antinous | | | | Category | Fashion
| Reference | 14083 | | Designer | Balfour Geiner, Allen | | | | Date Recorded | 17/10/2023 | | |
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| Tartan Name | Antique 2000 | | | | Category | Fashion
| | | | Designer | Lochcarron of Scotland | STA Ref | 4087 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Antrim County, Crest Range | | | | Category | District
| | | | Designer | Viking Technology Limited | STA Ref | 7448 | | Date Recorded | Not Specified | STWR Ref | 3074 |
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| Tartan Name | Antrim, County | | | | Category | District
| | | | Designer | House of Edgar - Macnaughton Holdings Ltd. | STA Ref | 2282 | | Date Recorded | Not Specified | STWR Ref | 2282 |
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| Tartan Name | Anzac | | | | Category | Fashion
| | | | Designer | Timely Marketing | STA Ref | 3042 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Aoife's Sensory Bus | | | | Category | Corporate
| Reference | 13549 | | Designer | McGreechin, Erin and Teviotdale, Gemma | | | | Date Recorded | 23/06/2022 | | |
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| Tartan Name | AON | | | | Category | Corporate
| | | | Designer | Kinloch Anderson Ltd | STA Ref | 4012 | | Date Recorded | Not Specified | STWR Ref | 2823 |
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| Tartan Name | Aonaich | | | | Category | Fashion
| Reference | 13483 | | Designer | Tartan Caledonia | | | | Date Recorded | 19/04/2022 | | |
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| Tartan Name | Apache (Corporate) | | | | Category | Corporate
| | | | Designer | Paterson, Patricia | STA Ref | 6447 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Applecross | | | | Category | District
| | | | Designer | Not Specified | STA Ref | 961 | | Date Recorded | Not Specified | STWR Ref | 961 |
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| Tartan Name | Applestone | | | | Category | Other | Reference | 11549 | | Designer | Walsh, Bud | | | | Date Recorded | 01/06/2016 | | |
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