1 kopeck 2007 Russia SP, variety 4.12, from circulation
Designation "4.12" according to A. Stashkin's special catalog, regional. Reverse: the bud is rounded, the curl is closed, and the denomination number 1 is convex.
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.
