This is absolutely fascinating. It's right up my alley and I can't believe I haven't heard of Onfim before! Birch bark is so darn useful, I didn't even realize

This is absolutely fascinating. It's right up my alley and I can't believe I haven't heard of Onfim before! Birch bark is so darn useful, I didn't even realize it was also used as a writing surface, which makes all kinds of sense. Thanks for sharing this.