31. The incomes from the revenue stamp created a surplus in the university finances, which were poorly administrated. 32. As they continued to be used as revenue stamps , high values were printed, up to 100 pounds. 33. After selling his revenue collection to Deats, Sterling became a stamp dealer, still specializing in revenue stamps . 34. At that time the Bureau of Engraving and Printing produced all United States postage and revenue stamps . 35. Mewes formed collections of Bavaria, the Revenue stamps of Alsace, and the first flight covers of Lufthansa. 36. Revenue stamps were surcharged as well.37. This is a list of different types of revenue stamps with a list of countries that used each type. 38. There is still a considerable lack of documentation and information for a complete overview of in particular revenue stamps . 39. Stamp taxes were then administered by the Inland Revenue Stamp Taxes business stream ( formerly the Stamp Office ). 40. The British colony of Aden, which is now part of Yemen, issued revenue stamps from 1937 to around 1945.
