Interim period markings.
Interim period forms.
| SI-RO-1: Two line standard Interim heading with no TELEGRAM. Form number E.T. No. 10. Boxes on either side of Address details. Message area is boxed. |  | 
| SI-RO-2: Two line standard Interim heading with no TELEGRAM. Message area is plain and occupies about 66% of the form. Date Stamp box is smaller. |  |