Sentence:  Your issue of February, 1975 has a photo (see cut) and caption by Erwin D. Stephens describing this longish beanshooter as a "<WSD>juvember</WSD>." Please fill me in on the derivation of "juvember." At first glance it appears to be a synthetic word, a contraction of either June or July and either November or December. 
Meaning of the word marked with <WSD> tags:  A slingshot.