Real blanks are manufactured by Goznak with watermarks and special ink.
Because a savings book is a ( бланк строгой отчетности ), it is printed on special security paper with watermarks and unique serial numbers to prevent forgery.
Как узнать реквизиты для перевода - Сбербанк
No manual corrections are allowed on the blank; any mistake requires a new official form. 🏦 How to Get an Official Savings Book
In short, . While you can find "samples" or "scans" of covers and inner pages online for reference or decorative purposes (like a Sberbank cover scan from Abali.ru ), these are not official documents.
Bring your passport to any branch that handles deposits.