From Swedish GP at Kristianstad on 11 August 1957.<a rel="nofollow" class="external autonumber" href="https://www.racingsportscars.com/results/Kristianstad-1957-08-11.html">[1]</a> The mechanic looks like Luigi Parenti, who was with Scuderia Ferrari at this time.  <br><li>Entry #3 is the 1957 Ferrari 335 Sport Scaglietti s/n 0674, driven to 4th place by Scuderia Ferrari drivers Mike Hawthorn and Luigi Musso.<a rel="nofollow" class="external autonumber" href="http://www.barchetta.cc/english/all.ferraris/detail/0674.315s.htm">[2]</a> 
</li><li>The #5 entry is the 1957 Ferrari 250 Testa Rossa s/n 0666 driven by Gendebien and Trintignant (did not finish).
</li><li>The third car (partly hidden by people) may be #4, which would be the 1957 Ferrari 335 Sport Scaglietti s/n 0700 driven to 2nd place by Phil Hill and Peter Collins. One Ferrari historian seems to think s/n 0700 is correct here.
<a rel="nofollow" class="external autonumber" href="http://www.barchetta.cc/english/All.Ferraris/Detail/0700.335S.htm">[3]</a>
</li><li>The third (left, behind) may be #6, which is the 1957 Ferrari 250 Testa Rossa s/n 0704TR</li>
Rickard Bruzelius
<a rel="nofollow" class="external autonumber" href="https://www.facebook.com/photo/?fbid=1027555640989557">[4]</a>