Definitions for "Center Seam"
Keywords:  seam, envelope, throat, catalog, steiff
Same as Catalog envelope.
The permanent seam located approximately in the center of the envelope running from the bottom fold and seam, up through the envelope to its throat. Center seams are most commonly used on coin and catalog envelopes.
When used in relation to a rare, early Steiff bear. To use material economically Steiff cut six teddy bear heads from one length of mohair, a seventh head was then cut in two pieces and sewn together forming a seam down the centre of the bears face.