Kalashnikov Bayonets of the World

I've been wanting to add a Russian 6x5 to the collection for some time now. the few I have had the opportunity to purchase have been horribly overpriced. my patience finally paid off last week when I stumbled upon this example at a very reasonable price. better yet, it turns out to have a plum color when viewed in daylight!

No serial number on the bayonet or scabbard. Black pebble grain leather hanger. Blade marked OTK 51 Opposite side marked 4 within a rectangle Pommel marked 9-1

Izhevsk Arsenal Marking Marked OTK ?

Since this is my first Russian 6x5, i only have a Black Bulgarian Circle 10 to compare colors.

Nice bayonet! More uncommon to see em without the numbers. Good find!!