Captured Soviet self-propelled gun SU-76 in service with 5th SS-Panzer-Division "Wiking".
Note the white cross. I believe that had been generally discontinued quite some time before the SU-76 entered service (late '42/early '43 IIRC). The reason was that it was too visible, and offered too good a “target” for enemy fire. Was it used deliberately on captured vehicles to avoid friendly fire? Either way, I can’t think of a “feel good” outcome for the crew…
Right, Ardee, another hastily applied field made decal.
May be it will be intresting fore you, the one of the nick-names for this SPG in USSR was "Ferdinand with nacked ass" 