Can you stamp on the backside of the tag?
Most likely no, because the hand stamped impression can be seen on the other side. There are only a few pieces that can be stamped on both sides. You’ll see this noted in the description.
How are the cuff link discs attached to the backs?
All my cuff links are soldered.
What sizes do the cufflinks come in and how do they compare?
Custom cuff links are available in three sizes: