It would appear Korong Caravans was the name of a caravan dealership in Bendigo, Victoria, who sold rebadged vans that were made by Franklin. This is not unlike the Norm Reeman badged caravans that pop up on the forum from time to time, which are also rebadged Franklins.
Forum discussions about Korong caravans can be found in these threads:
1966 (approx) Korong 13ft x 7ft caravan: This van was listed on ebay in July 2009. The seller told me it was sold new by Bendigo York Caravans. I'm pretty sure this van is a Franklin Premier that has had the Korong name branded on it (see top right photo)...
Hi, a comment on the Norm Reeman caravans. We lived in an old caravan on site while we built this house back in the late eighties. It was on its last legs when we got it and when we moved into the house, it went to the great caravan park in the sky - but its badge didn't. Tony felt sentimental over it and he attached it to his workbench (he has soul) and we just went out and rescued it. It reads Norm Reeman Caravans 408 Canterbury Rd., Surrey Hills, Victoria Phone 83 8877 Serial No 305
Post by Don Ricardo on Jul 6, 2012 18:13:00 GMT 10
A late 50's or early 60's van with the 'Korong' name signwritten above the front window, and a Korong name plate.
As indicated the 'Korong' name was applied to a variety of vans sold by Bendigo Caravans, a caravan dealer in Bendigo. This one looks to me as if it is from the Ballarat caravan enclave - Franklin...Coronet...Huntsman?**
Note that there is a very small numerical figure just below and to the right of the 'g' in Korong which indicates the length of the van. I can't quite read it, but at a guess it may be '16' in this case.
**Addendum 14 August 2017: To answer my own question regarding the origins of this van, the shelf in the galley with the single centre support indicates that it was built by Franklin.