“For many years I was engaged in expeditions searching for different metals...” (some more details about contacts of Iohann Friedrich Bluherwith Olonets region)

The article provides some data on the 1719 mining trip planned for Iohann Fridrich Blüher who was a famous specialist in the field of mining. The researcher was scheduled to travel to Olonets region (possibly to Konchezero copper smelter). The nature of I. F. Blüher’s professional contacts with foreign specialists who served at the smelter (including the founder of Konchezero smelter Wolf Martin Zimmermann) is discussed. Participation of Olonets foundries in selecting personnel is highlighted. Later, this staff was sent to a Siberian city of Kungur after V N. Tatistchev and I. F. Blüher departed there in 1720. A comparison of assessments given to I. F. Blüher and his activities by his contemporaries is provided. A set of factors that found its reflection in the negative assessment given by J. D. Bruce и V. I. Gennin was revealed.