Your bottle was made by Consumers Glass in November/December in a year ending with a 1 before 1962 i.e. 1961, 1951, etc. Consumers used a trademark of a C in an inverted triangle prior to 1962 and a C in a triangle after 1962. My apologies for my earlier assumption concerning the configuration of the trademark.
[Mod: The above detail is a correction to information given in an earlier post - and which has now been removed]