Admittance

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A door marked "No Admittance". (TV: Proteus (episode 1) [+]Loading...{"timestamp":"1:15","ep":"1","1":"Proteus (TV story)"})

In Earth-92131, a door in the Mutant Research Centre behind which Proteus was undergoing treatment was marked "No Admittance". (TV: Proteus (episode 1) [+]Loading...{"ep":"1","1":"Proteus (TV story)"})