Is this a Böker 9695?

[Ittsukan]

Picked up this vintage swell end jack because I thought it may be a Böker 9695.
The missing shield seemed to indicate that but it has no Böker marks, only Solingen Germany on each blade tang. I don't know if it is some kind of copy. It is very well made. Solid bolsters, half stop on each blade, and the scales appear to be bone, not a composite as there is no indication of melting around the pins. There doesn't seem to be any indication that there was an etch on the blade that was removed and the hole where the shield goes is 10mm. Bigger than the mid 70s Bökers I have.
The catalog page is from 1972/73.
Would appreciate any thoughts on this one. TIA