Although forgeries are known of the overprinted issues, none of them are particularly dangerous when comparisons can be made with known genuine material. In some instances the forgers exhibited their ignorance by printing forged Type II, III, or IV overprints on stamps that were not part of the genuine First Edition. Doubtful stamps should always be expertized.

Three different forgeries are known to the authors:

1. The common "Budapest" forgery, characterized by thinner letters, and taller, thinner numerals (Figure 16).

2. A forgery characterized by several deformed letters. Especially notable is the high center bar of the ш in Пошта. The numerals resemble the genuine in shape, but they are about 0.3 mm too tall. In one interesting variation, the forger added "1944" to the left of the numerals. At one time, some collectors thought that these were trial printings. So far, the authors have only seen these overprints in red on the 18f stamp (Figure 17).

3. A poorly executed forgery with many overinked and underinked letters. Known both without numerals and with "00" numerals. Here too, some collectors once thought that these were trial printings (Figure 18).