1764-1825.
Surveyor. In 1794, engineer attached to the General Survey office.
[Sveriges sjökartor – A. Hedin]
1757-1819
Upptagen hos Tooley som 'Swedish Royal Geographer' med en karta 'Lands Wägarne genom södra Sverige 1792'. Det är möjligt att denna karta är den enda som Linnerhjelm har varit redaktör för.
Skalan är ca 1:1.100.000.
Bland arbeten.
Lands Wägarne genom södra Sverige 1792
RdeTTooley
1713-1788.
Became instructor at the pilot school of Karlskrona in 1745. In an official communication pointing out the inadequacy of Swedish sea charts, Wallman called for more astronomical observations and more careful measurements. Appointed commander and director of pilots in 1755, he was handed the opportunity of personally directing marine measurements, principally on the southern coastline. A successor summed up Wallman's career: 'Nobody before or after has made such great personal contribution to the sounding of our coasts'
Sveriges sjökartor – A. Hedin.
Stockholm - Mentzer ca 1860.
Nassovia Principatus. - N. Visscher, andra halvan av 1600-talet.