Antonov An-12 Cockpit Door.
This is the inside, as seen from the cockpit. Note the ventillation louvres which correspond with the positions of the round openings on the other side. The receptacle to the right of the door handle is probably a stowage for the aircraft's fuel carnet. There was probably a pocket below the door handle for stowage of documents such as certificate of airworthiness, radio licence etc.
Photo: Cameron Elmes
QUEENSLAND AIR MUSEUM www.qam.com.au