Development of Working Tools 1979
Now showing: Portugal - Postage stamps - 1979 - Development of Working Tools - 5 stamps.
1979
Development of Working Tools
24. January WM: None Design: CTT, Portugal Engraving: Stampatore: Imprensa Nacional Casa da Moeda Perforation: 13½
![[Development of Working Tools, type YZ]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/YZ-s.jpg)
![[Development of Working Tools, type ZA]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/ZA-s.jpg)
![[Development of Working Tools, type ZB]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/ZB-s.jpg)
![[Development of Working Tools, type ZC]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/ZC-s.jpg)
![[Development of Working Tools, type ZD]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/ZD-s.jpg)
