Hi Bob,
I confess to never having purchased one of you guides, sorry, only the Greenberg ones, so here is the challenge, what makes your guide superior to Greenberg’s version?😀
My own personal view on guides is that I am not a big fan of them, please don’t take that personally, just my view and here is why.
To start I haven’t purchased a GB guide for many a year now so I may be a bit behind on some entries that to me make the principal of how they say they compile valuations.
Over the pond here I have a number of 220V transformers 4B-EX, 8B-EX and 18B-EX. To find one over here is like finding hens teeth due to rarity, yet in the GB guide they mentioned them (or they did on a regular basis about 10 years ago when I got my last one) and the blurb at the front of the guide states that all valuations are based on said items being offered/sold during the compilation for that year. I have never seen on eBay a 220V transformer being offered, I have never seen a 220V transformer on any of the dealers that advertise Flyer I follow, so where are all these 220V transformers that GB claims they see? I will happily purchase more 18B-EX transformers if they are often found for sale in the US.
In your guide Bob do you list these transformers and if so do you have a value on them and how is this value determined if you do?