Show HERES REAL SAFETY ENVELOPE ingenious device for double locking a letter A new en envelope elope made in n PRO Is proof against the thief or the m adler md dier ler who opens a letter to extract ol 01 to read its cor cuts and then reseals repeals it so cleverly as to hide any sign of it having been tampered with the new envelope is really to envelopes each Is of thin paper one a pronounced blue the other lighted in color and different in texture each has a gummed flap the letter is first place in n the flue lue eni envelope elope which is slightly smaller than the other instead of sealing this it is placed in the outer envelope and the inner flap brought outside and gummed down on to the baiger envelope the outer flat flap is still lod d it as N much larr lar tT than the or flat flap and reaches down doa to a good sized star shared shaped opening which shoeb through to the inner envelope so that when the outer flap is sealed it sticks not only to the outer envelope but also through this opening to the tuner inner one the letter is thus practically locked and double locked |