This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F5C7 offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
A notebook (also known as a notepad, writing pad, drawing pad, or legal pad) is a book or stack of paper pages that are often ruled and used for purposes such as note-taking, journaling or other writing, drawing, or scrapbooking and more.
Representations
System
Representation (click value to copy)
NΒΊ
128455
UTF-8
F0 9F 97 87
UTF-16
D8 3D DD C7
UTF-32
00 01 F5 C7
URL-Quoted
%F0%9F%97%87
HTML hex reference
🗇
Wrong windows-1252 Mojibake
Γ°ΕΈββ‘
Encoding: GB18030 (hex bytes)
94 39 F6 39
RFC 5137
\u'1F5C7'
Bash and Zsh inside echo -e
\U0001F5C7
C and C++
\U0001F5C7
C#
\U0001F5C7
CSS
\01F5C7
Excel
=UNICHAR(128455)
Go
\U0001F5C7
JavaScript
\uD83D\uDDC7
Modern JavaScript since ES6
\u{1f5c7}
JSON
\uD83D\uDDC7
Java
\uD83D\uDDC7
Lua
\u{1F5C7}
Matlab
char(128455)
Perl
"\x{1F5C7}"
PHP
\u{1f5c7}
PostgreSQL
U&'\+01F5C7'
PowerShell
`u{1F5C7}
Python
\U0001F5C7
Ruby
\u{1f5c7}
Rust
\u{1f5c7}
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