Edwin F. Lark filed his petition for a writ of error coram nobis, seeking to set aside a judgment of criminal conviction entered against him in 1925. He has long since served the sentence imposed upon him and has received a presidential pardon the exact nature and effect of which do not clearly appear.

The District Court held extended hearings at which the testimony of witnesses and documentary evidence were presented. After careful and painstaking consideration the court below filed its Memorandum Opinion 1 setting forth detailed findings of fact and denying relief. We conclude that the findings are clearly supported by substantial evidence in the record.

Perceiving no error we affirm.