1 kopeck 2003 Russia SP, horse rein engraving №31, from circulation

Engraving of horse reins No. 31 according to the generally accepted numbering of Yuri Kulvelis.

http://coins2001.narod.ru/1k03pgrav.jpg
A total of 52 engravings are known, not taking into account No. 0 (non-engraved version).
Between No. 51 and No. 60, the numbering is skipped, because No. 60 is considered "ungraved".
Reverse 2.22 A1 is known only with engravings №1, №10, №30, №35 and No. 43,
the other variants of engravings are found only with the reverse 3.212A1.

The reins between the horse's muzzle and neck, as well as between the rider's hand and the horse's neck, are very often not stamped.
But attempts to "repair" and engrave this element of the drawing are no longer found on any denominations and in any other years. This is a unique event in modern varieties.
That is why collecting engravings of 1 kopeck 2003 SP attracts the attention of experienced translators.

SP - (сп) under the horse's hoof - Saint-Petersburg Mint

Collectors collect circulation coins by year and mints. Ciculation coins cost's higher than it's nominal value, because In some region of Russia can be rare coins with particular year, in other region - other year. For collectors it is hard to be in all regions...That is why collectors buy them to make their collection full.