What springs are these?

[chaztg]

The box was labeled "240Z". They are blue, they are tagged F&R, their height is right for 240Z springs....what are they? They were found in a Datsun parts hoarde last weekend. I'm going back for more this Saturday. These springs have been stashed for quite a long time, they appear to be unused. The color suggests Tokico. I think a couple of older brands were "Turn Six" or "Dave Cook" that also were possibly blue. Are ther any more "seasoned" Z officianados out there who could wager a guess? Thanks

[Grim]

They look like msa euro spec springs.