This is not a printed pattern.  This is a digital download.  

Pattern # 115 Laughing Moon Mercantile - Celebrating our 30th Year
Ladies' Regency & Romantic Era Corset
1805 - 1840 with corded & Theatrical Versions of the Corset with Chemise
Misses Sizes 4 - 40 - 19 Sizes Included All in the Download -
Size Layers and Garment Selectable
Ladies' Regency and Romantic Era Corset, Corded and Theatrical Versions, with Chemise, approximately 1805-1840.  Taken from a real period corset and chemise.
You can choose to print only the garment you want in the size you want.  This pattern includes two versions of the corset:  full traditional corset with cording, an easier theatrical version, with a short option for both.  The chemise is also included.  This corset has all sizes 4 - 40, both in color and black/white patterns, with size choices in the layers, so you can print out only the garment you want in the size you want.  All versions of the corset can be made with front opening.
View A is a traditional lightly boned, corded corset with slashed and inserted gussets. The corset is lined and corded with cotton string. It is constructed with 5 major pieces, shoulder straps, and eight gussets. The corset is bound on top and bottom. Metal eyelets were invented in 1828 and can be used, or the eyelets can be hand worked. View B is a theatrical version designed to give the same relative silhouette with a simpler construction. It has seven major pieces, shoulder straps, and two gussets. Suggestions are given for boning. Chemise: It is constructed of two major pieces with shoulder straps, sleeves, and sleeve gussets. It has a drawstring neckline all the way around.  An addendum has been added to the pattern to make the short version of the corset.
This is a digital download that contains multiple files.  There are files for the instructions, the front and back cover of the pattern, and one Read Me First file that describes how to print the pattern.  The A0 size pages are meant to be printed at your online or local copy shop that has wide format printers, or you can print them on your home printer by using the "poster" option in Acrobat.
You must have Adobe ACROBAT Reader (it is free) installed on your computer in order to be able to open these pattern files.  You can get the free program here:  https://get.adobe.com/reader/