In German. Photostat of the original letter.

The date might be 1902/06/27, as the top of the last digit of the day of the month was missed in the photostat. But since Frege altered the date from "30", it seems likely he would have corrected the day due to having finished the letter a day earlier than he supposed when he began writing the letter and not 3 days earlier. The 29th also allows more time for BR's letter to reach Frege and for him to begin his reply. Both Frege's Briefwechsel and his Philosophical and Mathematical Correspondence have the 29th, although they do not remark on the partially lost number 9.