Inside Painted Snuff Bottles-One of the most famous and collectible types of snuff bottles is the inside or reverse painted. These little masterpieces are painted by reaching down through the neck of the bottle with a tiny curved brush or piece of bamboo.
A signature block (often abbreviated as signature, sig block, sig file, .sig, dot sig, siggy, or just sig) is a block of text automatically appended at the bottom of an email message, Usenet article, or forum post. 1  1 Email and Usenet.  1.1 Signatures in Usenet postings.
A digital signature is a mathematical scheme for demonstrating the authenticity of a digital message or documents.igital signatures are often used to implement electronic signatures, a broader term that refers to any electronic data that carries the intent of a signature, but not all electronic signatures use digital signatures.