With over thirty years of experience Thomas Minckler Fine Art has done countless appraisals & authentications. The diversity of our clients includes museums such as the Buffalo Bill Historical Center, Cody, Wyoming, CM Russell Museum, Great Falls, Montana , the National Cowboy And Western Heritage Museum, Oklahoma City, Oklahoma and notably the Federal Government for the Lewis and Clark Collection at Pompey's Pillar.

Individuals use our appraisal services for both estate and insurance purposes. We appraise corporate collections as well as confirm values for insurance company claims. On occasion, we consult families, individuals and corporations on how best to bring a collection to market in the most cost effective manner and create maximum revenue.