Here are a few more from the 1932 Netherlands Flight previously mentioned
here. All album page images link to larger copies.
The previous cards shown in this thread were all either on-board cancels or Netherlands mail from the return flight. These three cards are from the outbound flight, but cancelled at Friedrichshafen rather than on-board.

Friedrichshafen Cancel from 1932 Netherlands Flight
The primary difference in these three cards is the location at which each was dropped -- Enschede (Si 164Aa), Groningen (Si 164Ba), or Rotterdam (Si 164Ca).

Friedrichshafen cancel, dropped at Enschede (Si 164Aa)

Friedrichshafen cancel, dropped at Enschede (Si 164Aa) on album page

Friedrichshafen cancel, dropped at Groningen (Si 164Ba)

Friedrichshafen cancel, dropped at Groningen (Si 164Ba) on album page

Friedrichshafen cancel, dropped at Rotterdam (Si 164Ca) (missing Rotterdam arrival cancel, as was common)

Friedrichshafen cancel, dropped at Rotterdam (Si 164Ca) on album page