Skip to main content

Smithsonian main website

Search

Search

What is 2+5?

Chinese (Simplified)

Chinese (Traditional)

Kurdish (Kurmanji)

Myanmar (Burmese)

Scottish Gaelic

Smithsonian National Postal Museum

Visit
Visit
Plan Your Visit
Location and Directions
Calendar of Events
Public Programs
Floor Plan
Tours and Itineraries
Amenities
Accessibility
Reviews
Alerts
Visit »

Open daily 10 a.m. to 5:30 p.m.

Admission is always free!

2 Massachusetts Ave., N.E.
Washington, DC 20002

The museum's main entrance is located on the corner of First Street and Massachusetts Avenue NE. Other entrances have variable hours.

Learn more
Exhibitions
Exhibitions
Current Exhibitions
Past Exhibitions
Virtual Exhibitions
Upcoming Exhibitions
Learn
Learn
For Researchers
For Educators
National History Day
Topical Reference Pages
Oral History
Research Articles
Stamp Collecting
Social Media
Activities
Collections
Collections
Search the Collection
Collections Search Center
Collection History
National Postal Museum Archives
Donating Collection Objects or Archival Materials
Object Loans
Collection Projects
Object Spotlight
Digital Asset Collections
Rights and Reproductions
Preservation
Shared Stewardship and Ethical Returns
About
About
About the Museum
About Us
FAQs
Support the Museum
Host an Event
National Postal Museum Gala
Philatelic Achievement Award
Contact Us
Press
Site Map
Blog

Systems at Work

Home
Exhibitions
Current Exhibitions
Systems at Work
Hint #2

Click to view social media share links

Hint #2

Barcode

These bars represent a ZIP Code.

« Previous | Next »

Systems at Work

The Exhibition
Catalysts of Change
- Decode the Barcode
Resources
- Objects in Exhibition
- Curriculum
About the Exhibition
Exhibition Outline

‹ Hint #1 up Hint #3 ›

Smithsonian National Postal Museum

Open daily 10 a.m. to 5:30 p.m.

Admission is always free!

2 Massachusetts Ave., N.E.
Washington, DC 20002

The museum's main entrance is located on the corner of First Street and Massachusetts Avenue NE. Other entrances have variable hours.

Privacy
Terms of Use
Press
Site Map
e-News

Facebook
Twitter
Instagram
Pinterest
YouTube
Flickr

Have you signed up for our monthly e-newsletter?

Owney, the Railway Mail Service Mascot

Back to Top