Malawi 2008 Great Scientists #4 - Babbage & Faraday perf sheetlet containing 2 values each with Rotary logo, fine cto used
Malawi 2008 Great Scientists #4 - Babbage & Faraday perf sheetlet containing 2 values each with Rotary logo, fine cto used
Malawi 2008 Great Scientists #4 - Babbage & Faraday perf sheetlet containing 2 values each with Rotary logo, fine cto used