Antique White & Gold Shaving Mug. Very Old !

Description

antique shaving mug porcelain. Condition is "Used". Shipped with USPS Priority Mail
This mug is very old but in perfect condition- the only odd thing- could be a flaw is some raised piece that’s on the interior bottom- like a little piece of porcelain that fired that way- see picture
Says Shaving mug on gold script lettering & that’s in perfect condition- no markings or any logo on the bottom
Measures 3. 1/4 diameter x 3 1/4 in ht .