cased 1957 version Ritterkreuz. Need opinion!

[Lowboy]

My 1957 .. apparently from the 60's with an early 57 case.

[Glenn66]

For comparison, here is my 1st pattern core. Note the concave leaves and the longer acorn stems. I think this is a 'B' frame but i've forgotten all the 1957 nuances that I researched before i bought this piece.