Accar perthi (Field).
Grid Reference: SJ 03552 76382. Parish: St Asaph, Flintshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Back of perthi duon (Field).
Grid Reference: SJ 14821 58201. Parish: Llanbedr-Dyffryn-Clwyd, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Bryn Perthi (Field).
Grid Reference: SH 38461 42177. Parish: Llannor, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Bryn Perthi (Field).
Grid Reference: SH 38525 42089. Parish: Llannor, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Bryn Perthi (Field).
Grid Reference: SH 38539 42160. Parish: Llannor, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Bryn-perthi (Unclassified).
Grid Reference: SH 68847 74904. Parish: Llanfairfechan, Caernarfonshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Cae perthi (Field).
Grid Reference: SJ 03655 01489. Parish: Llanllugan, Montgomeryshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae Perthi (Field).
Grid Reference: ST 12800 90713. Parish: Eglwysilan, Glamorgan
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae perthi (Field).
Grid Reference: SH 50715 52077. Parish: Llanllyfni, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae perthi (Field).
Grid Reference: SN 66271 63066. Parish: Caron-is-clawdd, Cardiganshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin