Antique British Sterling Silver Repousse Mug Ca. 1852 Glasgow, Scotland

Description

This listing is for a fine quality Scottish sterling silver tankard that was was made in Glasgow in 1852.  The maker's mark is a bit rubbed but it looks like there is 3 or 4 characters with S being the last one.  I have narrowed it down to JM & S which is J. Muirhead & Sons or WA & S which is W. Alexander & Son.  Both were active in the 2nd half of the 19th century.  Or it could be neither.
The tankard is 4 3/4" tall to the top of the handle and and 3 1/2" in diameter.   The weight is 6.03 troy ounces (187.7 grams).
Great condition for age.  There are no distracting dings or dents and only a slight wobble when it is on a flat surface.  I have only lightly polished this piece but it could use a more thorough polishing, especially on the inside of the mug.
Please see all pictures for details.
No international shipping.
Payment within 48 hours of purchase please.
Returns accepted but only if item was misrepresented.