What is this aircraft from ca. 1925 (crash included)? I recently found the following family pictures from ca. 1925 and have been trying to identify the aircraft in them:



A second picture of the same aircraft was taken shortly after the first one:



Both of the occupants supposedly walked away unharmed - my guess is that confident look in the first image didn't linger.

Judging by the inscription on the top of the second image they were taken in Lausanne, Switzerland. 

Bonus Question: Does the registration number of 85 mean anything in particular? For example, is this the 85th aircraft registered in Switzerland? Or the 85th aircraft of this type made by the manufacturer?
Looking at the holes in the engine cowling, landing gear, struts and wires configuration and general geometry, it may very likely be a 1918 Halberstadt C.V 


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Horizontal stabilizer and elevator shape, handles on the upper wing, "square grid" on the upper wing, also tells it is a Halberstadt CV

This document explains how swiss military aircrafts/airships are numbered.

Aircrafts numbered 64 and 703 were supposed to be DFW C.V But the one in the pictures you provided is definitely a closer match to Halberstadt C.V, anyway there were also DFW C.V built by Halberstadt company. Most surprising is the fact that number 85 is missing.