People who lived in 14th centuary, worked with axes to make poles sharp. These were used for defence from enemies whom were called "Rozhon". But since cannons were invented these people were using them, and got double last names "Rozhnov-Pushkin". Forefathers of the famous russian poet Alexander Pushkin had this name. Laterly that last name was separated.
Using experience of his forefathers, master makes a plane and applied all new discoveries in it. To make curves/waves in the blade and it's arrangement, which allow to work with it without support. Quality of the surfaces made this plane is good as made with modern machines.