Old Flint USA Vanadium Knife - Questions

[vscience]

2 knives.
Smaller knife is marked: Flint U.S.A. Vanadium;
The second larger knife has no markings that I could find.
Both blades look like similar material so my question is:
Are they both made of Vanadium? Any guesses on larger unmarked knife?
Any info or ballpark age? Your input appreciated. Thx!!
https://www.flickr.com/photos/155045331@N04/49497857652/in/dateposted-friend/
https://www.flickr.com/photos/155045331@N04/49497135198/in/dateposted-friend/

 

[Rhinoknives1]

Vanadium is only one element in the steel. Roughly Along the lines of a 440A, B, or C Stainless with Vanadium of course .. Good kitchen knives. My parents received those as a wedding gift in the 1950’s. My brother still uses them.

 

[George C Nickols]

I found one of these in the garage and it's such an incredible knife!