Thanks Wayne, I will inform you as soon as I have the right numbers, but the seller don't answer my messages ... 

Yes, that's strange that paint on the seat pan !
No requirement about import into France, I don't know why all these change were made ?
I'll ask the seller to send me more information and detailed pics and I come back here 

The very first CB750 were delivered in France in september or october 1969, this doesn't concern the "special sandcast" series 14XXX and 17XXX.

This internal technical note from Honda France is interesting as it confirms that the very first CB750 delivered in september or october 1969 were fitted with this strange master-cylinder, but modified by Honda dealers with the "new master-cylinder" before to be delivered to the customer.

I don't know if it's the French touch, but a very interesting discussion for sure ! 

As you say Gérard, the aim of Honda France in 1970 was to deliver a lot of CB750's and answer to the retailers demands.
Sandcast or diecast engine was absolutely not the problem, and what is today for us a very important point was only a detail for the Honda France employees at the moment. So I am not surprised if they forgot the information very quickly and did not mention this fact to Eric Breton ...

I often dream to have the possibility to read Honda France archives from the 60's and 70's, if they are always existing. I am trying to write an article about the beginning of Honda in France, but Psalty's heirs are very hard to find, it seems he had only a daughter who probably married and used his husband's name. I have many documents and information about the difficult relationship between Honda and Psalty between 1961 and 1967, when they lost their "exclusive importer" status, but no precise idea of sales level during these years.

My advice about these French Sandcasts is that Honda had big problems with diecast production delay following the incredible success of the CB750, and so decided to produce some sandcast engines. Decision to sell these bikes only in one country is understandable as it's easier to inform the after-sale services of one country. Why Honda has chosen France for these bikes will remain a mistery !

But I think that all other parts of these bikes were the same that the diecast machines produced at this time, as single cut front guard, unwrinkled tanks and so on.

KP :  cream coloured horn were specific to the French market, all Hondas of the era had the same horn in France !
I contact my friend and sak him for pictures of VIN number and details  
I'll post them here in low-res, it would be possible to send them by email in hi-res if interested.

I was with my friend Franck in 2013 when he bought such a 750, sandcast engine #1 017 417, and I can say that the tank was not wrinkled !

I don't remind the VIN number of that bike, but it seems to me that it was not 1 017 272 as listed above, I can ask him a picture and others pictures if you are interested by some details 

Steve, Psalty was the oldest Honda dealer in France, but has ceased its activity today.
And he became Yamaha exclusive during the 80's after a falling out with Honda France ...

I think one of the oldest Honda dealer in France, always in activity, is Japauto in Paris, and Pithioud in Lyon.

edit : benjixt is right, Werther is probably the oldest Honda dealer in France, Japauto and Pithioud started with Honda in 1967 or 1968 ...

K0 French sales :
543 in 1969
1250 in 1970
total : 1793

Worldwide sales : near 53 000