To install the version for Google Earth on a desktop computer (see below for iPad version):

1. Download Google Earth Pro here (the desktop version, not the “on web” or “on mobile” version) and install.

2. Download the Google Earth .kmz file (German-Colonies-and-Offices-Abroad-260115.kmz).

3. In Google Earth pro, click File, Open, and select the .kmz file you just downloaded.

4. The screen should show the Earth in the right-hand window, with three sidebars at the left labeled Search, Places, and Layers.

5. The Colonies information will be under the folder Temporary Places. If you leave it there, it will have to be reloaded on future occasions. To keep it available permanently, right click and select Save to My Places.  If will then be moved up to the My Places folder above Temporary Places.

6. Depending on what you’ve done previously in Google Earth, some of the options in the bottom left sidebar (Layers) may be checked. I recommend unchecking all. To see modern place names, check Borders and Labels.

7. There are two main sections — the first has the information on the post offices, and the second allows you to see a few images from the period that have been added as well. Each can be expanded by clicking the gray arrows next to the names.

8.  To go to a post office, expand the German Colonies and Offices Abroad until you get to the post office you would like to see, then double click on the post office. The earth with rotate and zoom to that location. In this example, Berlinhafen.

9.  For each post office, clicking on its icon on the map will popup a box with details.  For the cancels to display, you must have an Internet connection.  The images are not large, but they are downloaded from the server as needed.

10.  Some locations will have photos added as well.  For the photos to display, you must have an Internet connection.  The images are not large, but they are downloaded from the server as needed.

11. To disable or enable photos, use the Images checkboxes in the Places sidebar.

12.  The images are aligned with North at the top.  If, during rotation, the Earth becomes crooked, click the “N” on the compass to reorient North at the top.

To install the version for Google Earth on an iPad (see above for desktop instructions):

(Note: you must be running iOS13 or later, as that’s the version which introduced the ability to download files to the iPad from Safari; you might be able to use an earlier iOS version, but you’ll need a browser that allows downloads.  All directions below are shown using Safari)

1.  In Safari, click the link to download the Google Earth file (German-Colonies-and-Offices-Abroad-230917.kmz).  You will get a popup – click it to download the file:

2.  If you’d like to make sure it downloaded, you can click the downloads icon in Safari to see the download manager.  Also, if you’re not sure where in your iPad the file was saved, you can click the magnifying glass icon next to the filename to open that location.

3.  Open the Google Earth app on your iPad.  You’ll be presented with this screen.

4.  Click the top left icon (three horizontal lines).

5.  This will open up a sidebar.  From the sidebar, select My Places.

6.  From here, select the option to import a KML file (this also allows importing of KMZ files).

7.  Navigate to the KMZ file you downloaded in step 1 and select it.  The My Places sidebar will now show the German Colonies KMZ.  The eye icon must be turned on (showing blue) for the data to show up on the map.

8.  The iPad version doesn’t give you the option to select a place from the navigation tree like the desktop version does, so you must manually navigate around the map to see places.  When you get to a place you’d like details on, simple tap on the place’s icon for the detail popup.

9.  The iPad version also doesn’t allow you to disable the photos.  You can, however, disable modern place names and borders by selecting the three horizontal lines icon (as in Step 4), Map Style, Clean.