Thank you for the reply to my question and your comments. I agree with you about the Heller box art painting. Not knowing what was intended by artist F. Berqes, it seems most likely he chose to illustrate Bf-109B 6-26 in brighter, and to some perhaps more attractive colors and markings, than was in fact the case for 6-26. I would like to hear his comments on the matter.
I wish to discuss your comments about the repainting of Bf-109Bs in RLM 63/65 after they were delivered to J/88. Do you have any written evidence or a relic supporting the use of RLM 63 on the upper surfaces of Jumo powered Bf-109s? I have not seen evidence that proves the use of any particular color or its source. I have seen photos that show many Jumo powered Bf-109Bs survived long enough to be repainted over their original, and darker delivery colors.
The scan below was posted at website Axis History Forum on June 17, 2012 by Akira Takiguchi. The URL is http://forum.axishistory.com/viewtopic.php?f=119&t=97665
Akira reports his image is from an original Agfacolor slide he purchased. Its color had mostly faded out and the current appearance of it required work using computer image manipulating software.
In my opinion this image serves to discredit the usage of a dark green like RLM 62 for camouflage on the upper surfaces of Bf-109s. I have seen that reported in some older references. I am not sure this color slide would have been clear or close enough to allow us to determine what paint color was used for repainting the Bf-109s, were this slide's inks still fresh and new. Note the washed out yellow color of the flags and the dark spot of color on the He-112 fuselage.