Under the lock down bar and under the legs will be a true representation of the base white colour.

If you want to restore this machine to ORIGINAL then you really need to match your colours.

On a pinball - there is no such colour as WHITE... it might look white, but it isnt, it will be a VERY light shade of yellow or red or blue. The linseed finish applied over the top makes it turn a deeper yellow, but underneath is an OFF WHITE.

JD.. if you can get some of the paint off.... a tiny amount is all thats needed - say 3mm or bigger of the OFF white, orange AND the black ( black aint always black either, there is HARD black and SOFT black) and post them to me I will match the colours straight away for you and supply the codes... you can walk into any paint shop and have them mixed on the spot.
 If you can supply a part of the base colour with the fleck on it.. ill tell you what this is also