Ball
Mason
Dates of
production:
Ball
Mason, logo 1, round 1898-1910
Ball
Mason, logo 1.5, round 1910-1912
Ball
Mason, logo 2, round 1912-1914
Ball
Mason, logo 5, rounded-square, grippers, c/o 1960-1966
Ball
Mason, logo 5, rounded-square, grippers, c/o, med, 1966-1974
Ball
Mason, logo 5, rounded-square, grippers, c/o, med, ® 1974
Ball
Mason, logo 5, rounded-square, grippers, c/o, med, ®, met 1975-date
Refer to the glossary for
definition of terms.
Notes:
The word ‘Perfect’ was
added about 1912 and dropped when logo 5 was introduced. ‘C/O’ stands for cup-and-ounce markings,
‘med’ stands for the sculptured fruit medallion that was put on the reverse, the
® is the registration mark that was added just below the logo and ‘met’ stands
for metric graduations placed on the opposite side of the cup-and-ounce
markings.