1966 Ajax v Liverpool ticket

[1980Cossie]

Hi,
Does anybody know what one of these tickets could be worth, thinking about listing mine on ebay this week, i've had a quick look on Liverpool in Europe website & seen they have 2 tickets down for the match both different one is blue & the other is orange, the one i have is white the exact same style as the blue one from the website, i suppose any collectors with both the blue & orange tickets only could be interested in it still to form the set?
Thanks,
Robert