Newest acquisition, a dorp and voos

[Greedyrogue]

So I won this little beauty for less than $10. Can anyone narrow down the manufacture date for it.

Front reads
42 dorp and voos
Soligen-Germany
Back reads
Soligen
Made in Germany

Brand new to honing, do you hone a near wedge any different than a standard hollow ground? Debating If I want to try it myself or save it for when I am more experienced.