The “Lernt Deutschland kennen!” (Get to Know Germany!) cards were issued over a span of 30+ years. Each card featured a scenic German picture on the left side. Any German town could order the cards and choose the view, provided they ordered at least 50,000 cards. For this reason, hundreds of different varieties exist. The printing codes (ex. 34-49-1-B7) denote the year (34), series (49), cylinder or plate number (1), and the view identifier (B7).

The P304 “Lernt Deutschland kennen!” series saw a switch from the previous Hindenburg stamp design to the Hitler stamp design. The P304 series differs from the similar P305 series in that “Hausnummer” and “Postschließfachnummer” are not hyphenated and abbreviated on P304 cards. A total of 72 different P304 cards were issued in 8 series of 9 cards each.

The cards of the 41-187-1- printing series depict:

• B1 — Salzwedel
• B2 — Rappoltsweiler
• B3 — Tann with bushes
• B4 — Tann from the river
• B5 — Tann mountain road
• B6 — Breisach am Rhein
• B7 — Achern
• B8 — Hahnenklee-Bockswiese
• B9 — Steinschönau