Deutsch Zerne Familienbuch - Grun

Arthur Grun

I would really appreciate some help in interpreting the following from the DZ Familienbuch regarding my father. The information is as follows:-
4 = 4th child of Christoph & Katharina Grun
Josef = Christian name
* = Sign for birth
~ = Sign for baptism
07/08.06.1918 = Dob but what does 07/08 mean?
SZ/DZ = Place of birth
P.: Mich. Schafer, A. Kremer (geb. Schmidt) <3041> = I need help on all of this please
A big thank you to anyone who can help me.
Best Regards
Arthur Grun

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