Leather adhesive : White bond (Bond ace) - Seiwa brand / 1pc
This water based adhesive is excellent to bond your leatherwork. It also works great on wood or paper, dries clear. Should excess glue accumulate on unwanted areas, simply burnish off when dry or semi-dry.
Simply apply with a brush to both sides of the leather you wish to glue, put them together before glue dries out.
You can adjust the position during bonding because it does not dry quickly.