William Smith
Posted August 9, 2014 - 2:07pm
14K indicative of Rose Gold. Other examples and newer ads suggest this is the "B" variant.
We now have an ad showing the Yellow Cased version of this model as the 'SQUADRON' "A" and the White Cased version as the 'SQUADRON' "C"

ad Dated 1957.
From this information one can deduct that the Pink Cased version is indeed the 'SQUADRON' "B"