The clever folds that kept letters secret

Re:The clever folds that kept letters secret by smiley1437 on Friday June 18, 2021 @10:43AM (#27550893)

That's a lot of faith in the strength of a small strip of paper, I'd probably rip the thing several times just trying to make it like the video

Did they have stronger paper back then?

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Re:The clever folds that kept letters secret by sbradford26 on Friday June 18, 2021 @10:54AM (#27550993)

Making paper was a lot harder back then and they didn't have the machinery to create the uniform thin paper we have now. So you ended up with a thicker paper with more variance.

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Re:The clever folds that kept letters secret by bombcar on Friday June 18, 2021 @10:48AM (#27550936)

I assume they did but costs were associated - considering they were avoiding envelopes.

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