World War I caused ink and material shortages,
leading printers to add white borders around images to conserve resources.
This became the defining feature of the era, with slightly lower production quality.
Key Characteristics:
- Image: Surrounded by a noticeable white border.
- Back: Divided; stamp boxes often include publisher codes.
- Paper: Thinner and less premium than previous eras.
- Colors: More muted compared to later periods.
Dating Tips:
- White border is the primary identifier for 1915–1930.
- No linen texture yet.
- Publisher marks (e.g., early Curt Teich) in margins or on back can narrow dates.
- M. Kashower Co. Los Angeles 1913 – 1934 (roughly)
