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| Tartan Name | Pengelly, The Cornish | | | | Category | Name
| | | | Designer | Peter R. Morton-Nance from Gwethnoc Tartan Co Ltd. | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 3145 |
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| Tartan Name | Penman | | | | Category | Clan/Family | | | | Designer | Penman, William W.C. | STA Ref | 166 | | Date Recorded | Not Specified | STWR Ref | 166 |
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| Tartan Name | Penman #2 | | | | Category | Clan/Family | | | | Designer | Not Specified | STA Ref | none | | Date Recorded | Not Specified | STWR Ref | 167 |
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| Tartan Name | Penman Grey (Personal) | | | | Category | Name
| | | | Designer | Penman, Russell | STA Ref | 6644 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Pennsylvania | | | | Category | District
| | | | Designer | Johnston, Bill | STA Ref | 3130 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | People's Friend | | | | Category | Corporate
| Reference | 11893 | | Designer | Wilton, Brian | | | | Date Recorded | 18/08/2017 | | |
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| Tartan Name | Pepemau | | | | Category | Fashion
| Reference | 12818 | | Designer | MacLeod, Patrice L | | | | Date Recorded | 21/04/2020 | | |
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| Tartan Name | Pepemau Dress | | | | Category | Fashion
| Reference | 13899 | | Designer | MacLeod, Patrice L | | | | Date Recorded | 23/05/2023 | | |
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| Tartan Name | Perkins (2015) | | | | Category | Name
| Reference | 11211 | | Designer | Perkins, F & K | | | | Date Recorded | 05/02/2015 | | |
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| Tartan Name | Pernel (Personal) | | | | Category | Name
| Reference | 10098 | | Designer | Michel-Smoky Melieres | | | | Date Recorded | 13/11/2009 | | |
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| Tartan Name | Perratt (Personal) | | | | Category | Name
| | | | Designer | Geoffrey (Tailor) Highland Crafts | STA Ref | 6221 | | Date Recorded | Not Specified | STWR Ref | 2747 |
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| Tartan Name | Perry (2014) | | | | Category | Name
| Reference | 11023 | | Designer | Perry, Russ | | | | Date Recorded | 31/03/2014 | | |
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| Tartan Name | Perry / Pirrie (Personal) | | | | Category | Clan/Family | | | | Designer | Perry/Henderson | STA Ref | 1212 | | Date Recorded | Not Specified | STWR Ref | 1212 |
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| Tartan Name | Perry Ancient (Personal) | | | | Category | Clan/Family | | | | Designer | Perry, Dr J.R. | STA Ref | 1213 | | Date Recorded | Not Specified | STWR Ref | 1213 |
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