Titanic Prime whose Digits are all 9 except for one 1/Historical Note

Historical Note on Titanic Prime whose Digits are all 9 except for one 1
According to in his  of $1997$, this titanic prime was discovered by  in $1985$, but this has not been corroborated.

At the time it was the largest such prime number known.

It needs to be investigated whether this record has been broken since then.