Glass and Costume Jewelry Museum of Jablonec and Nisou, Czech Republic: 50+/- cards of A. Sachse beads.

https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=%E2%80%9CSachse+%26+Co%E2%80%9D+beads&btnG=

https://archive.org/search.php?query=%22%20A.%20Sachse%20%26%20Co.%22%20beads&sin=TXT

https://www.google.com/search?safe=active&rlz=1T4ADFA_enUS460US460&ei=2kmxXOSbDM7ktQXxpbDYBg&q=%22a.+sachse+%26+co%22+bead&oq=%22a.+sachse+%26+co%22+bead&gs_l=psy-ab.3..33i160.22031.24916..26600...0.0..0.175.766.0j5......0....1..gws-wiz.......33i22i29i30.ERkjeJrChzU

https://www.google.com/search?safe=active&rlz=1T4ADFA_enUS460US460&biw=1344&bih=679&tbm=isch&sa=1&ei=lkqxXLSZFcbmsAXFkbqAAw&q=%22a.+sachse%22+bead+sample+card&oq=%22a.+sachse%22+bead+sample+card&gs_l=img.3...6753.11642..12570...0.0..0.122.234.0j2......1....1..gws-wiz-img.TxGMLUS9u1o#imgrc=_&spf=1555122840243

Question:

On card #3, do you know how are the stripes running the width of the beads are created? Great cards and beads!