| Added by |
 Aidan Work
|
| General Description | Penang 1991 4 Ringgit postal order. 6th. of July 1991. Poundage - 10 Sen. Issued at Lebuh Noordin (Noordin St.) (George Town). Cashed at Toa Payoh Central,Singapore on the 17th. of July 1991. |
| Front Description | 'POS' logo at top left. Black handstamp at bottom. |
| Back Description | Regulations in Bahasa Melayu at top. Three uncancelled stamps at bottom - a Federal Territories 15 Sen,a Penang 15 Sen,& a Selangorean 10 Sen. |
| Catalog prices | No catalog prices set yet |
