WMS API

From the dataset abstract

Guide map of the City of Helsinki 1900.

Described in the map: nomenclature, streets, tramways and railways, public buildings, blocks and lots. In addition, the map shows some attractions and public services, as well as topography. The map also shows planned destinations that have not necessarily been implemented.

The scale of the Map is 1:12,000. The image resolution is 400 dpi.

The map can be downloaded as TIFF-file or used through WMS-API.

The map can be viewed here: https://kartta.hel.fi/link/by5jwU

Coordinate systems:

• Maintained in ETRS-GK25 (EPSG:3879), can be projected to other coordinate systems. See GetCapabilities query for other possible coordinate systems.

API addresses:

• WMS API: https://kartta.hel.fi/ws/geoserver/avoindata/wms

Layers:

• Plan_af_Helsingfors_1900

Source: Opaskartta Helsingin kaupungista vuodelta 1900