At the NSSA meeting held on 16 July 2015 a member showed the above item, which is a 1 1/2d die for embossing cheques signifying that the duty had been paid. The member described the item as follows:
This item came into our hands recently and we had no idea what it was. After discussion with a member who is a cheque collector extraordinaire we contacted Martin Walker who wrote a publication “The Shilling Violet” Impressed Duty Stamps of South Australia. It is in fact depicted in his publication and is a 1 1/2d stamp duty die used from 1938. It is similar (if not the same) as that held in the SA State Records office. It was used to emboss cheques on which the stamp duty had been paid. A quick browse of my cheque collection (a gift from the same cheque collector to society members on his 70th birthday) found similar but not the same impressions.