Letter-cards or letter-sheets, i.e. cards or sheets each of which is to be folded with the message inside and to serve as its own envelope for mailing

Full Title

Printed matter of special format or style not otherwise provided for > Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets > Foldable or multi-part cards or sheets > Letter-cards or letter-sheets, i.e. cards or sheets each of which is to be folded with the message inside and to serve as its own envelope for mailing

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER

Subclass:

BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS