These hinges look like they may be for the 1969 flying buttress seat. Missing some plastic covers that are available in reproduction. Very good deal imho

Ken

 

question, are these NOS, ie brand new old stock or used second hand?

 

These are spider 105 hinges, in detail quitte different than GTV hinges, but still good deal.

 

Judging by the tear drop plastic side cover out-line and the profile of the seat flip back knob these would be correct for a Series 2 or Series 3 Spider.