Guyana
Näytetään: Guyana - Viralliset kääröpostimerkit (1981 - 1983) - 3 postimerkit.
8. kesäkuu VM: 1 Perforaatio: 14
![[Flowers - Parcel Post Stamps Overprinted "OPS" - 3mm High, tyyppi A]](https://www.stampworld.com/media/catalogue/Guyana/Official-parcel-post-stamps/A-s.jpg)
![[Flowers - Parcel Post Stamps Overprinted "OPS" - 3mm High, tyyppi A1]](https://www.stampworld.com/media/catalogue/Guyana/Official-parcel-post-stamps/A1-s.jpg)
3. marraskuu VM: 1 Perforaatio: 14
![[Flowers - Parcel Post Stamp Overprinted "OPS" - 6mm High, tyyppi B]](https://www.stampworld.com/media/catalogue/Guyana/Official-parcel-post-stamps/B-s.jpg)
