FEPA News

FEPA NEWS 45 69 The World of Research The colour of the “mouse” is blue, except for some values (sheet numbers in parentheses): 1 Slt (1,2) brown 6 Slt (1-5) yellow 6 Slt (10,11) red 20 Slt (1-3) purple 50 Slt (1) green 100 Slt (1) grey Papers We have already mentioned that the stamps were printed on 90g paper. If we look at the stamps in daylight, we don’t see any major differences in the colour of the paper. However, it is different if we look at papers with different plates under short-wave (254 nm) UV light (we do not see any differences under long-wave UV light (380 nm)). The papers of stamps from most of the counter sheets are dark grey under the mentioned light, and some are bright white. This means that there was some additive (bleach) in the paper which shows a different picture under UV light. If the paper reacts in the same way under the UV lamp (i.e. dark grey or white), it is less interesting. However, it is definitely more interesting if the paper shows both reactions at the same sales plate number. I found this when examining the stamps I had at my disposal with the following values (position number in brackets): 1 Slt (6) 4 Slt (3) 6 Slt (10,11) 15 Slt (3) Of course, this does not mean that some other stamps do not have this, but we suggest readers take a look at their own examples. It is quite possible that they will find something else. Although the following belongs more to the printing section, we still mention here the differences in the reactions of the background colour around the coat of arms (“shading”), which is usually dark grey, and for the following values (marginal numbers in brackets) pink (dark or light or vivid): 1 Slt (13,14) bright pink 6 Slt (33,34) bright pink 11 Slt (14,15) bright pink 20 Slt (7,8) dark pink 20 Slt (9-33) bright pink For the value of 20 Slt, it is worth noting that the colour differences between sheets 9 to 34 and 1 to 8 are not only visible under UV light, but also with the naked eye. Stamps with mice from 1 to 8 have decorations around the crest in purple; stamps with mice from 9 to 33 have decorations around the crest in lilac. In addition, mouse stamps from 9 to 33 have a darker red border of the shield of arms. The minor deviations discussed also exist in some halves of the stamp for 2 Slt; even this list is not necessarily complete. Peculiarities of printing and perforation There are quite a few peculiarities in the edition in question, both in terms of printing and perforation. The details can be seen from the “Slovenika” catalogue but below we will show some of the most important and/or rarest ones. Here Fig. 4. Variations of the position of the sheet numbers at the 15 Slt value.