RE: hAeronca logo source(s)?
Take those pictures of the logo and plane to your local sign shop and they can size it to what ever you want and can, if they are big enough , cut them from vinyl or print them on sticky back clear material. There are other vinyl cutters available on the web and some advertise in RC Report and maybe the AMA Mag. I used a photo of the cowling logo of a Tri-Pacer and gave dimension wanted and they came out great. Cliff