We need two types of replacement drawer guides. Both were manufactured by Ronthor.
The first one has a patent number of 3.201.187 and below that R-40-28. In attached picture this is the top drawer guide.
The second one has a patent number of 2857233. In attached picture this is the bottom drawer guide.
I'd appreciate it if you could tell me which of your guides would be suitable replacements. We need six of each.