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Sweetie–BasePack
open, imageset
DarkGray
24x24
Book, Blue, reading
open, frame
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open
16x16
Lock, locked, security
open, red, reading
read, green, reading
security, locked, Lock
Primo
open, Box
128x128
LED
Email, Letter, mail
Silk
Door, open
Android icons
Box, open, pyramid
72x72
iBook OS
32x32
Onibari Ultimate
512x512
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Scrap
open, Folder, silver
300x300
Function
mail, send, Letter
48x48
Web Design
Lock, security, open
Shine 2
hamburger, open, Lock
Lock, Tablet, open
Computer & hardware
Smooth
Crystal Project
read, open, Only
UI
Pixel
Sketchdock Ecommerce Icons
open, Email
Business & finance
Box, open
WooFunction Icon set
open, Lock