Win 94AE finish

[elrey7698]

Ive searched google for hours on this but came up short... so i buffed out the bluing on my winchester model 94ae and i was wondering what the finish is under the blue? Look like nickel but ive never heard of nickel plating being blued... i want to gold plate the receiver but first i need to know what im working with... if it nickel things just got alot easier... thanks in advance🙏🏽