Its a proper factory model, of which there's not many of in the UK. Its RHD which to some is less likely to cause a nuclear explosion when used on the roads, that also has a value. its not a left to right swap either.
Well said.
The vendor hasn't really given us much to go on at this point, but from what I can see it is an early to mid 1972 production dated 'S30-S' model 'Fairlady Z', known as the 'Standard'/'Std' model and the entry-level, lowest price version available in Japan alongside six other Z variants for the 1972 sales year. Quite a rare survivor. By 1972 most Japanese buyers were attracted to the L24-engined models (Fairlady 240Z, Fairlady 240Z-L and Fairlady 240ZG) or the Deluxe version of the two L20A-engined models (Fairlady Z and Fairlady Z-L).
This one seems to have gained a couple of upgrades during its life. It is wearing the hubcaps from the contemporary Fairlady 240Z-L and Fairlady 240ZG models (which are the same as those seen on the contemporary Export models) but it would have left the factory with plain satin black steel wheels and no hubcaps. It might have sat in a Japanese showroom next to a Fairlady Z-L model which left the factory with the earlier style Japanese market hubcaps, in order to distinguish it from the L24-engined models. In any case, there was a long list of extra-cost showroom options for Japanese market buyers to choose from. The 'Standard' models are interesting for their basic, utilitarian nature.
Looks like it will probably sell quite quickly now. As an original RHD car in good condition it would have been a good candidate for a UK-based buyer who didn't want to go for an LHD car, but there's a small following for Japanese market cars in the USA now and there are people who are actively seeking out the 'G.I. Brides'.