1989 Topps Alfredo Griffin Question
So, I recently went through some old cards of mine as my middle son is starting to get into trading cards and "investing" in purchasing individual cards. I have two Alfredo Griffin 1989 Topps cards and to my surprise, they are both different. They appear to be on different stock (the coloration is different on the back) and one them has a pink outline on the borders (the one with the different coloration on the back-I think it might be because of cardstock?) and the other is normal with the black outline border. I looked at a few sites online and googled to see if this is part of the error cards found in the 1989 set that has been documented online but I have not found anything. Does anyone know what this means with the pink outline as none of the other '89 cards I have, have the outline (no, it's not a pink marker tracing the line). It's pretty clear that it's a mistake card. Is it worth it to get them graded? Should I take them to a local card collector store? Can I post pictures here? First time here as I just joined once I found the error. Thanks in advance for any information that can be gleaned.