Russia Type Stamp

This looks like Russia, and it looks familiar, but I can't place it. I hope it isn't some beyond the back of the book stamp.
Thanks in advance.

This is a stamp from General Denikin's government in South Russia during the Russian Civil War. In Scott it's South Russia #64.

My grandmother's sister Olga was Denikin's personal nurse (in lieu of a doctor), when they evacuated by sea after being defeated, she had a cabin reserved for her on the ship, but she refused and stayed in Russia. I had her military ID card (which would be a crime if found in USSR) but had to leave it (out of fear) before leaving USSR in 1978. I wish I still had it (or a scan).

Very interesting, do yo unow what became of Olga? I imagine being associated with the White Russian forces was generally an immediate death sentence, or shoveling dirt up on the White Sea canal.

Sorry, small retraction, I checked with my father, she was a highly positioned Denikin's supply adjutant, not a nurse. She hid her past somehow and lived rather well, she died when I was a teenager. I did have her ID with a red wax stamp. My grandmother's other sister was a nurse in some White army, but that's a different story. My granndmother's father was a railroad general around Vladikavkaz, the whole family was in Tzar's army.