94 cobra springs

i have a set of eibach's that came off a 94 cobra coupe, the rear spring number is 3514.202 i dont know the fronts becuase when i cleaned them ( hot tank ) it washed the numbers off before i noticed what was going on i know the fronts are eibach but i dont know the part number

did these come stock on the cobra?? my buddy seems to think they did i dunno i own 4 cyl turbo fox bodies so i dunno

so i guess im askin, is this a lowering spring? or stock
what can i put them in ( 94 gt, 87-93 gt, 4cyl turbo coupe (mustang) with modifications lol)
are they worth anything

welllll

they are black powdercoated i looked up the rear springs and summit says they are fo 84-93 ( sumthin like that) 1 inch drop
im lost on the fronts like i said when i hottanked them the numbers were there then i sprayed them down with wd-40 and wiped them and it took the numbers off before i realized what was goin on

i pulled them off a 94 cobra coupe i know the fronts are eibach thats what made me grabem just because i seen eibach ( dont ask cuzz i dunno y lol) the rears still have the numbers and eibach on them its jjust dirty in that spot lol

i dunno i called eibach but they are pacific time so i got a few hours before they open