Hey all,

I need some help spotting a potential fake. I have a set of Grover Deluxe tuners, they seem to be very solid, no rattles. Plastic colour seems to be correct, the pressed text seems to be clean. Only thing is is hs the letter "A" on the back. Inside one of the stamped circles... which I've never seen before.. I've looked at pictures of these online and none have the letter "A". What is this? Are they real or fake?