Dutch dealers catalogue: Netherlands and colonies. Stanly Gibbons: Great-Brittan and colonies. Michel: Germany – former Eastern-Europe – Asia – Europe. Yvert & Tellier: France and colonies – Worldwide.
You may also find these articles interesting
Great Britain #5 (SG #54) Extra Fine Used Pale Green On Choice Cover
1913 Great Britain United Kingdom King George V 5 Shillings Postage Stamp #174
Great Britain #124 (SG #212) Very Fine Used With Ideal Lombard St May 13 1896
