Museum on Main
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Envelope sealer

Even today, most mailing envelopes are made with an adhesive that has to be moistened before sealing. Licking the envelope is fine for just a few letters, but gets much harder when you have dozens or more to send at once. The wheel of this moistener is suspended over a water-filled tray; spinning the wheel provides a wet surface ready to moisten any stamp or envelope for sealing.
​These devices are still available today, but the switch to self-stick stamps and the rise of online marketing and social networks have made it much less useful than it once was.

Picture
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Museum on Main 603 Main Street Pleasanton, CA 94566   --   925.462.2766   --   www.museumonmain.org
  • Home
  • Visit/Contact
    • Hours and Directions
  • Education/Programs
    • Paint and Sip
    • Ed Kinney Series: An Evening With...
    • Charles Huff Free Historical Walking Tours
    • Harrington Free Art Walks
    • Student Programs
  • Exhibits/Collections
    • Exhibits
    • History of Pleasanton
    • Video - Museum on Main Moments
    • Collections
    • Research >
      • Newspaper Research
    • Photographs
    • Things to Donate?
  • Join/Donate
    • Donate
    • Membership
    • Volunteer
    • Living History Program
  • About
    • Mission & History
    • The Values of History
    • EDI Statement
    • Board of Directors
    • Administrative Documents
    • Contact
  • Blog