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| Tartan Name | Cork County, Crest Range | | | | Category | District
| | | | Designer | Viking Technology Limited | STA Ref | 7445 | | Date Recorded | Not Specified | STWR Ref | 3079 |
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| Tartan Name | Cork, County | | | | Category | District
| | | | Designer | House of Edgar - Macnaughton Holdings Ltd. | STA Ref | 2253 | | Date Recorded | Not Specified | STWR Ref | 2253 |
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| Tartan Name | Cornell | | | | Category | Fashion
| | | | Designer | Not Specified | STA Ref | 3859 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Cornell #2 | | | | Category | Corporate
| | | | Designer | Not Specified | STA Ref | 7829 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Cornish Brewery, Green | | | | Category | Corporate
| | | | Designer | Dalgliesh, D.C | STA Ref | 4588 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Cornish Brewery, Red | | | | Category | Corporate
| | | | Designer | Dalgliesh, D C | STA Ref | 4589 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Cornish Countryside | | | | Category | District
| Reference | 10240 | | Designer | Rowse, Michael A | | | | Date Recorded | 15/07/2010 | | |
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| Tartan Name | Cornish Hunting | | | | Category | District
| | | | Designer | Redwood, Sandra A | STA Ref | 1568 | | Date Recorded | Not Specified | STWR Ref | 1568 |
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| Tartan Name | Cornish National | | | | Category | District
| | | | Designer | Morton-Nance, E.E. | STA Ref | 1567 | | Date Recorded | Not Specified | STWR Ref | 1567 |
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| Tartan Name | Cornish National #2 | | | | Category | District
| | | | Designer | Not Specified | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 1569 |
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| Tartan Name | Cornish National Day | | | | Category | District
| | | | Designer | Rawe, Donald | STA Ref | 1262 | | Date Recorded | Not Specified | STWR Ref | 1262 |
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| Tartan Name | Cornish Pascoe, The | | | | Category | Name
| Reference | 10189 | | Designer | Brown, Nessa | | | | Date Recorded | 19/04/2010 | | |
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| Tartan Name | Cornwall | | | | Category | Fashion
| | | | Designer | West Coast Woolen Mill | STA Ref | 7057 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Coronation | | | | Category | Commemorative
| | | | Designer | Not Specified | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 661 |
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| Tartan Name | Coronation (1936) #2 | | | | Category | Commemorative
| | | | Designer | Not Specified | STA Ref | 2082 | | Date Recorded | Not Specified | STWR Ref | 2082 |
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