chassis numbers

[1967911s]

I have been looking on the interest for a way to find out how many rhd 1967 911s 's were manufactured, and so far all i can find is that there were 1276 made that year. Does anyone know of any service or resouce that can help me find out what i am looking for.

Also as a side, i have now filled my last page in my service history booklet, is there any protocol for further service history? add extra sheets? can porsche provide addittional booklets?

many thanks in advance if you have any ideas, regards rich