I am looking at an image via FindMyPast for the baptism of a William Milman on 14 Apr 1805 at Okehampton, Devon as the son of William and Ebbet.
I think that this is from the Parish Register of Okehampton.
When viewing the image it says at the top of the image viewer:
Devon Baptisms Image View transcription
and at the bottom, which is repeated along the left margin of the image itself:
© Images courtesy of South West Heritage Trust and Parochial Church Council
When I click the View transcription button at the top I see:
Devon Baptisms Transcription
First name(s) William Last name Milman Birth year - Baptism year 1805 Baptism date 14 Apr 1805 Denomination Anglican Baptism place Okehampton Father's first name(s) William Mother's first name(s) Ebbet County Devon Archive South West Heritage Trust Archive reference 3210A/PR/1/3 Record set Devon Baptisms Category Birth, Marriage, Death & Parish Records Subcategory Births & baptisms Collections from Great Britain
How can I be certain that this is an image from the Parish Register of Okehampton, and not from a Bishop's Transcript of that register, or something else?