In article ,
"rod allan" wrote:

ITALIE. Porte-timbre d'Emilio NERI - Négociant en TP à Florence. Neuf. Sans
charnière.

Porte-timbres were a fad in the early 1900s. They consisted of a label
with text surrounding a space for a stamp. They were designed to be
stuck on the enveloppe and the stamp applied upon them.

Nothing like an examp;e:
http://www.cijoint.fr/cjlink.php?fil...cijKV3dj7r.jpg

All kind of businesses and associations issued them. They were
particularly popular in France and I remember Yvert listed them in older
editions. They are still considered highly collectable, specially on
cover.

The ad you quoted is for a «porte-timbre» issued by an Italian stamp
dealer. Condition is described as «Mint, no hinge mark»

Rgards

Richard