Looks like it's sealed with wax.

Of shoes and ships and sealing wax And cabbages and kings

Of shoes and ships and sealing wax, of cabbages and kings

And before he was taken by his enemies, he asked me for quill, paper, ink and sealing wax.

The elements came together and burst apart, forming shoes and ships and sealing-wax and cabbages and kings.

The "j.W." pressed into its wax seal.

They also took wax-sealed supply lists

When it's ready, send it to the Mayor of Scaridizzi... marked "personal," sealed with wax, remember.

To talk of other things ♫ Of shoes and ships and sealing wax and cabbages and kings ♫ ♫ And why the sea is boiling hot and whether pigs have wings ♫ ♫ Caloo, callay, no work today ♫ ♫ We're cabbages and kings ♫

Of shoes and ships and sealing wax, cabbages and kings ♫ And why the sea is boiling hot and whether pigs have wings ♫ ♫ Caloo, callay, come run away ♫ ♫ With cabbages and kings ♫