How to find the Original Accepted offer Letter of a Candidate who has been Rejected by Employer

Summary: A candidate has accepted the offer letter and then Rejected by Employer. Later made some changes in the Offer Letter Template and uploaded it into the Recruiting Content Library as a new version. Now where can the HR/Recruiter find the original accepted offer letter.

Content : I do not find the Original Accepted Offer Letter from the Document of Records or in the UI. The Candidate has originally accepted the offer letter and then Rejected by Employer. After few days made some changes in the offer letter template and uploaded it into the Recruiting Content Library as a new version. Previewing the Offer under the Candidate profile shows the new version of the Offer. But I have a customer who is looking for the Original Accepted Offer Letter due to some business impact. Please guide on the same. Thanks in Advance.