Jonathan King, 66, of Matlock Way, Abingdon, Oxfordshire, was the owner of Cameo, formerly based at Kennet Holme Farm, Midgham, Berkshire. The saleroom suspended trading in April 2012, beset by allegations of non-payment, missing goods and credit card irregularities.
Last month King was sentenced at Reading Crown Court to a total of five years imprisonment for a variety of offences, including four counts of fraud, two counts of breaching the Consumer Protection from Unfair Trading Regulations 2008 and one count of perjury.
His wife Beverley King, 62, received two years imprisonment suspended for two years and 150 hours Unpaid Work Requirement in respect of one count of money laundering.
The Kings have launched appeals which will be considered by the Court of Appeal in due course.
Jonathan King's brother-in-law, Glenn Norcliffe, of Marcuse Road, Caterham, Surrey, was sentenced to four years in total. As the Cameo auction manager, he faced three counts of fraud and one of false accounting.
Norcliffe had previously been acquitted of two counts of fraud at the trial in November and December 2014, while the court acquitted Beverley King of one further count of money laundering. Each defendant was also ordered to pay a £15 victim surcharge.
The convictions followed a two-year investigation by West Berkshire Council Trading Standards Service into the activities of those involved in the running of Cameo.
Following the sentencing, Judge Stephen John adjourned the case until October when the matter of confiscation of any criminal assets will be dealt with. The trading standards service is now conducting an investigation as to what assets can be recovered under the Proceeds of Crime Act 2002.