Leoncio Iruretagoyena y Eraso's signature
https://www.familysearch.org/ark:/61903/3:1:3QHV-B3RH-FSQD
Leoncio Iruretagoyena y Eraso (30 July 1844, Lumbier, Navarre - 5 February 1901, San Sebastián, Gipuzkoa)