HC Deb 05 April 1950 vol 473 c156W
Mr. Janner

asked the Postmaster-General whether he is aware that multicoloured airmail envelopes are harmful to the eyesight of sorters and what steps he is taking to prohibit the use of such envelopes.

Mr. Ness Edwards

Yes. The trade association concerned has been approached and is co-operating in discouraging the use of such envelopes.