How To Restore Dates On Worn Buffalo Nickels

My first time trying this and it was a ton of fun and I did find a low mintage Early Date Buffalo in the process of restoring the dates to these worn out nickels!

how,to,restore,date,worn,out,buffalo,nickel,nicadate,nic,rare,valuable,worth,money,cash,antique,clean,penny,dime,quarter,half,dollar,bill,star,note,metal,detecting,acid,reveal,biggest,top,10,gold,silver,copper,treasure,seeker,rob,finds,hidden,pirate,