Timeline for all types of items produced by
ABT Mfg. Co. [Adler Bechtol Tratsch] [Chicago, IL, USA]

Year	Items
1924	1
1925	1
1926	1
1927	3
1928	3
1929	1
1930	5
1931	2
1932	2
1933	4
1934	3
1935	5
1936	9
1939	5
1949	1
1950	1

47 items with a valid date were considered for this timeline (64.38% of the total)
26 items with an invalid date.

Help us in our quest to find exact dates for:

193?: 23 items.
19??: 3 items.