Electrolux
Good Housekeeping ads--These were probably more likely in the spring or fall months when more cleaning was done and Elux had 'drive months'(usually April & October)to go all out for more sales,new model introduction,close out pricing,etc.Branches would often receive reprint copies of upcoming magazine ads with 'As seen in (mo)(year)of XXXXXXXX magazine'to show customers.
-E--I have seen a very few early Es with 2 screws on switch button cover but the one I recall with extra chrome (front & rear) was a Metropolitan rebuilt.
Changes--As above there can be small changes during a models production.There seem to be times Elux would note some with a rubber stamp in already printed owners manuals.Such as a feature changing from standard to optional (or vise versa).
