It seems likely that there were 6 photos. MoD documents released by the UK National Archives indicate this; they date from before Nick Pope's time at "the UFO desk".
The loose minute dated 14 September 1990 from D/Sec (AS)12/2 to the office of the undersecretary of state (a junior government minister) for the air force says negatives of six photos were provided (
post #135, Calvine Photo Hoax Theories thread).
View attachment 91792
Same post, a handwritten cover note from the "UFO desk" files says
External Quote:
A number of colour photographs taken by eye witness and passed to RAF Pitreavie and Scottish Daily Record. Original negatives then passed to the Daily Record.
I don't think there is any evidence that the photos/ negatives themselves were ever classified, or even regarded as Ministry of Defence property.
It's likely the originals were returned to the
Daily Record newspaper, but this isn't certain. (IIRC one senior
Daily Record editor who knew of the photos doesn't remember them being returned, another, the contact for the claimants, died some time before the story got much publicity so we don't have his recollections).
Someone within the MoD requested line drawings and estimates of dimensions for the UFO from vu-foils (overhead projector transparencies) on 29 November 1991 (
post #1127, Original Calvine UFO Photo thread). The requesting person wrote
External Quote:
Original negatives are not available
which might be evidence that the RAF/MoD did return the originals (or at least they no longer had the originals).
Many of the documents directly relevant to the Calvine case are from the MoD's "UFO Desk" files, which have been declassified and can be downloaded free from the (UK) National Archives. IIRC all those relating to Calvine have been posted in Calvine threads here, including
Claim: Original Calvine UFO Photo,
Calvine Photo Hoax Theories.
The "UFO desk" (in Secretariat (Air Staff) 2A in 1990, and a subsection of Directorate Air Space from 2000) was shut down in 2009, its files archived and later made publicly available
External Quote:
The files also show that in 2009, Defence Minister Bob Ainsworth was told that in more than 50 years "no UFO sighting reported to [MoD] has ever revealed anything to suggest an extra-terrestrial presence or military threat to the UK" (DEFE 24/2458/1). This led to their decision to close the UFO Desk and with it the UFO hotline and dedicated email address.
National Archives Press press release, "UFO Desk: Closed - Last Tranche of UFO Files Released"
https://cdn.nationalarchives.gov.uk/documents/final-tranche-of-UFO-files-released.pdf
It might be unlikely that the UK MoD retains any information about the Calvine UFO claim that hasn't already been published.