questions on mail slot

A quick learner from Coquitlam says:
Hi just wondering if the mail slot has is the same for inside the door or wall and out? (like is there the little metal flap on both sides? that is what i am hoping). thanks
p.s. also is there lettering on the flap? i wasn't sure if it there were letters or it was plain
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting! Our 40-009 does not have a flap on both sides, no. I'd imagine that the presence of a second would interfere with the function of the first. However, it does have a matching inside trim plate.
Alternate view of 40-009
The flap has the word LETTERS written on it.
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