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In page Irkutsk:

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By the mid-19th century, the word "babr" had fallen out of common usage, but it was still recorded in the Armorial of the Russian Empire. Furthermore, the tigers became extinct in this part of Siberia. In the 1870s, a high-placed French heraldist with a limited command of Russian assumed that "babr" was a misspelling of "bobr", the Russian word for "beaver", and changed the wording accordingly. This modification engendered a long dispute between the local authorities, who were so confused by the revised description that they started to depict the "babr" as a fabulous animal, half-tiger and half-beaver.[citation needed]