I looked at my 1970 color chip book. There were 2 other greens used by Ford that year. Code 7 was for a 1969-1970 Maverick and was called Anti-Establish Mint and code 19 for a 1970 Thunderbird and Continental called Green Fire Poly and Green Stardust Poly. Neither one really looks like a match to me but given that I am looking at a small paint chip and a computer monitor I could be wrong. You could try stopping by a store that mixes automotive paint to see if they have a 1970 chip book to take a look for yourself.
Did you happen to get the original owners manual with the car? If so did you look to see if anyone made any note of the color in it? A real long shot would be to see if the original selling dealer is still around and if so if they might still have any paperwork on your car.
Another option would be to take some of the interior apart to see if the original build sheet is still there. I usually find them laying on the floor beneath the sound deadener and carpet. Some have been found behind the panel on the back of the front seat, some have been found tucked up under the dash. A plus here is that while you have some of the interior out you could see what color the floors are painted to see if they match the exterior of the car.
As noted in post #5 above did you check the buck tag?
Randy Goodling
CCOA #95