Abstract: In the retailing of articles it is necessary to ensure that packages containing a plurality of articles fall within predetermined weight ranges. The invention is particularly but not exclusively concerned with the packing of bacon but applies to other articles in which:(a) predetermined weight of an article i.e. a slice of bacon is variable.The packages aree weighed at a first weigh station to determine whether they fall within a predetermined weight range or whether they fall within predetermined limits either side of said predetermined weight range. If the latter the packages are then fed to a second weigh station at which they are again weighed and according to the weight ascertained there, an operator is given an indication usually by lights as to the exact number of make weight pieces both in number and size which have to be added or subtracted to the package in order that the package shall then fall accurately within the predetermined weight range.