The postcard printer / publisher archives section is still far from being complete. The logo you are looking for not found on this page? Make sure to visit also the new
Logo Gallery with some 39 additional logos to browse through.
For a selection of Real Photo trademarks click here
Below a trial run with 29 old ppc firms (topo / subject / greeting card manufacturers). I do not like a plain list presentation with logo/trademark only much (but added such a page now). Giving each firm a separate page allows more information to be included along with some more or less typical cards illustrated.