Usage: {{BergDS|switch|No.|Plate No.}}
- Variable 1:
- Bg = Berg original 1918 issue.
- Blwn = Belwing re-issue (re-engraving) with Berg's 1918 copyright date.
- Variable 2: item number in series (not used in Berg's original issue)
- Variable 3: plate number (not used in Berg's original issue)
