History of telecommunications and electricity

5 rekords ta’ bolli · 2c / 5c / 9c / 14c / 20c

Basic ordinary postage types plus separately documented major watermark, paper, perforation or denomination differences. Excludes unchanged reprints, errors, marginal positions and repeated presentation formats.

• Farrugia, issue studies, PSM 27(1), pp. 33–35 ↗