There was a loan record set up for the Daleks Master Plan episode, it was sent to the Blue Peter film editor in October 1973 and it was logged that the print never came back to the Library. The Tenth Planet episode was not originally logged on Infax/FLOL which implies that it was accessed from Enterprises at Villiers House, as with certain other clips that survive from missing episodes of Dr Who.
Read the full Q&A here.
Another development on the topic of missing Doctor Who episodes is the announcement of Philip Morris attending the Pandorica Convention. Philip is the owner of Television International Enterprises Archives Ltd (TIEA) and is known for discovering nine Troughton episodes in 2013. This will be his first appearance on an unofficial convention. The Pandorica 2015 will be held in Bristol from 25th to 27th September 2015.