Ah, tool kits! One of my favored collector item topics...
Definately 17 mm open end x 19 mm ring, also part number forged next to a three pointed star symbol 201 581 02 46
Well,
201 581 02 46...
The 201 (190E etc., Baby Benz) was not present for more than another 10 years when the Pagoda run out of production.
Thus, that tool is clearly
not original for the W113.
Yes, I have seen before that open mouth spanners are from the different manufacturers in one tool kit but I am not sure whether or not this was always factory or one of the spanners was replaced later .
Among these Hazet & Gedore being the oldest and most reputable suppliers.
Later during the production run in the sixties (and seventies) the tools came from cheaper sources like Matador or Heyco.
Don't know how this is today.
I've got one "new" W113 ... uhm ... W112 toolkit in 1995 and the open mouth spanners are all from Matador or Heyco (I don't remember now) but not mixed.
Achim