Questions on a piece of Motorsport history

This week I came by a 1969 New Zealand GP programme signed by Graham Hill, Derek Bell, Chris Amon (twice), Piers Courage, Graham McRae and Jochen Rindt. The race itself was won by Amon from Rindt and Courage. I have a couple of questions about this:
1. Was this Jochen Rindt's 1st race for Lotus?
2. Was this Graham Hill's first F1 race since he won the 68 world title?
3. Does anyone know what might be an approximate value for this sort of thing?
Pictures below, thanks in advance.

I wouldn't count it as Graham's first F1 race since winning the 1968 title - the NZ GP was run to the Tasman formula.

Well spotted sir I missed that:)

Yes, it was Jochen's Lotus debut. And it was Graham's first race of any sort since Mexico 1968.

Thanks for the info Vitesse2