Re: Advice on NZ printers proofs.
Thanks for your helpful note. I have bought examples of proof material in the past, GV in both original colours and in black eg 1/- single in black and a block x 4 3d recess in black also. Other examples I have include imperforate pairs of GV1, in original shades and similar for QE11.
Chalon proofs are regularly for sale on ebay as well as the previously mentioned issues. I can't discren any obvious market price for this material, which features regularly in other auctions as well.
Your general advice 'buyer beware' regarding some of the missing colours and misperfs from 1960's onwards I have previoulsy picked up from notes in the Campbell Patterson catalogue. Do you have any advice regarding the earlier printers proof issues? Thank you.